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April 24, 2014

Search: defective

Number of results: 355

math
Three out of 200 machine parts were found to be defective. About how many parts would be expected to be defective out of 2500 parts?
Monday, February 3, 2014 at 2:37pm by Na Bug

Math
An electronic store receives a shipment of 30 graphing calculators, including 6 that are defective. Four of these calculators are selected to be sent to a local high school. How many selections can be made? How many of this selections will contain two defective calculators?
Monday, February 20, 2012 at 9:45am by Oshurbekova

math
Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability that four or more car ...
Saturday, February 11, 2012 at 4:50pm by k

statistics
In a batch of 97 computer diskettes, 8 are defective. A sample of six diskettes is to be selected from the batch.How many of the samples consist of all defective diskettes?
Sunday, February 20, 2011 at 5:36pm by hanna

Math
Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability that four or more car ...
Saturday, February 11, 2012 at 9:50pm by Krista

Statistics
Suppose that an automobile parts wholesaler claims that .5 percent of the car batteries in a shipment are defective. A random sample of 200 batteries is taken, and four are found to be defective. (a) Use the Poisson approximation to find the probability that four or more car ...
Saturday, February 11, 2012 at 10:10pm by Krista

Math
My question is to get a better understanding of this. Basically, these two problems, I did it WITHOUT replacement. So I would multiply each defects and so forth. My question is, would I have to subtract the total from 1 in the second question? I am not exactly clear on when to...
Tuesday, March 6, 2007 at 5:15pm by J

PROBABILTY-STATS HELP
A product is assembled from 3 components X,Y,Z and the probability of these components being defective is 0.01, 0.02,0.05. i have to find the probability that the assumed product will not be defective? can someone explain to me, how do it? thanks
Thursday, April 5, 2012 at 8:07am by Taskeen

Stat
Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability it takes 10 circuit boards to be inspected before a defective board is found is
Sunday, January 3, 2010 at 1:10pm by Max

probability
six out of every 400 cans of paint are found to be defective. If you buy four cans of paint,what is the probability that one can will be defective.
Tuesday, March 5, 2013 at 11:19am by sarah

math
Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line ifhe finds more than 1/50 of the sample to be defective. About how ...
Wednesday, December 13, 2006 at 7:16am by tara

statistics
Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is
Monday, March 29, 2010 at 8:39pm by Hanna

statistics
Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected before a defective board is found is greater than 10 is
Monday, March 29, 2010 at 8:40pm by Hanna

probability
The J.O. Supplies Company buys calculators from a Korean supplier. The probability of a defective calculator is 10%. If 15 calculators are selected at random, what is the probability that 4 or more of the calculators will be defective
Sunday, July 22, 2012 at 10:48pm by Anonymous

statistics
4.90. Defective Equipment. A piece of electronic eqipment contains six computer chips, two of which are defective. Three chips are selected at random, removed from the piece of equipment, and inspected. Let x equal the number of defectives observed, where x = 0, 1, or 2. Find ...
Sunday, October 17, 2010 at 5:33pm by Anonymous

statitics
Suppose that a sample of n = 1,600 tires of the same type are obtained at random from an ongoing production process in which 8% of all such tires produced are defective. What is the probability that in such a sample 150 or fewer tires will be defective
Tuesday, March 27, 2012 at 6:45pm by Chris

statitics
Suppose that a sample of n = 1,600 tires of the same type are obtained at random from an ongoing production process in which 8% of all such tires produced are defective. What is the probability that in such a sample 150 or fewer tires will be defective
Tuesday, March 27, 2012 at 7:51pm by Chris

probability
In a shipment of 11 CD players, two are defective. Find the probability that a sample of 3 CD players will contain no more than one defective one.
Saturday, June 18, 2011 at 10:54pm by vanessa

statistics
Three percent of the widgets produced by machine 1121 are defective. what is the probablity that a box of 30 widgets produced by that machine contains two or more defective widgets?
Saturday, December 10, 2011 at 10:30pm by John

maths
a box contains 20 fuses ,out of which ,5 are defective.if a sample of 3 fuses is chosen from the box at random without replacement,find the probability that x fuses in this sample will be defective
Saturday, February 11, 2012 at 2:10pm by ashely

statistics
Given the following situation, how would you use Megastat to test whether the population defective rate is greater than 10%? Please outline the process for the test and, if necessary, including the output from Megastat to explain your approach. What conditions do you need to ...
Friday, January 29, 2010 at 8:55pm by Jenny

Ap Statistics
Two percent of the circuit boards manufactured by a particular company are defective. If circuit boards are randomly selected for testing, the probability that the number of circuit boards inspected until a defective board is found is greater than 10 is (a)1.024 X 10^7 (b) 5....
Monday, February 16, 2009 at 5:53pm by Nishi

statistics
1. The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of eight syringes taken from the batch. Suppse the batch contains 2% defective syringes. Find sigma. Please show work. Thanks
Saturday, June 25, 2011 at 9:29pm by Harley

math
3 out of every 1,000 bulbs produced are defective. If 5,000 bulbs are produced, how many would you expect to be defective
Thursday, July 11, 2013 at 11:52am by Anonymous

statistics
the quality control inspector of a production plant will reject a batch of syringes it two or more defective syringes are found in a random sample of ten syringes taken from the batch. suppose the batch contains 2% defective syringes. What is the probability that the batch ...
Sunday, September 12, 2010 at 6:41pm by sandra

statistics
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 170 and a variance of 4. The material is considered defective if the breaking strength is less than 166 pounds. What is the probability that a single, randomly selected piece ...
Thursday, August 25, 2011 at 9:52pm by Anonymous

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 4. The material is considered defective if the breaking strength is less than 161 pounds. What is the probability that a single, randomly selected piece ...
Friday, March 9, 2012 at 9:46pm by Anonymous

law of torts
If a manufacturer made 100,000 hair dryers and only one was defective, he could: a) Still be liable for the one defective hair dryer. b) Ask the court for punitive damages. c) Ask the court for exemplary damages. d) b and c. e) None of the above. I would think a?
Tuesday, April 3, 2012 at 9:32pm by shelly

MATH
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 175 and a variance of 9. The material is considered defective if the breaking strength is less than 166 pounds. What is the probability that a single, randomly selected piece ...
Sunday, June 3, 2012 at 3:11pm by Anonymous

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 4. The material is considered defective if the breaking strength is less than 168 pounds. What is the probability that a single, randomly selected piece ...
Monday, August 27, 2012 at 8:16pm by dawn

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 173 and a variance of 9. The material is considered defective if the breaking strength is less than 167 pounds. What is the probability that a single, randomly selected piece ...
Friday, December 21, 2012 at 12:37pm by Anonymous

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 145 and a variance of 25. The material is considered defective if the breaking strength is less than 134.5 pounds. What is the probability that a single, randomly selected ...
Sunday, March 17, 2013 at 10:09am by buffy

Algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 195 and a variance of 4. The material is considered defective if the breaking strength is less than 190.2 pounds. What is the probability that a single, randomly selected piece...
Thursday, March 6, 2014 at 7:07pm by Walden University

math
One light bulb is selected at random from a lot of 150 light bulbs, of which 6% are defective. What is the probability that the light bulb selected is defective?
Sunday, February 20, 2011 at 6:40pm by Vanny

standard deviations
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 175 and a variance of 9. The material is considered defective if the breaking strength is less than 166 pounds. What is the probability that a single, randomly selected piece ...
Sunday, December 4, 2011 at 9:21pm by Anonymous

Quantitative analysis
3. A service station owner sells Firm-on-the-road tyres which are ordered from a local tyre distributor. The distributor receives tyres from two plants, A and B. When the owner of the service station receives an order from the distributor, there is a 0.5 probability that the ...
Sunday, February 6, 2011 at 5:21am by george

Statistics
In a sample of 77 widgets, 6 were defective. How many defective widgets would you expect in a sample of 616 widgets?
Tuesday, April 30, 2013 at 3:53pm by Lenore

math
In a sample of 77 widgets,6 were defective, How many defective widgets would you expect in a sample of 616 widgets?
Wednesday, May 1, 2013 at 2:24pm by pandora

Statistics
Can someone please help me with this example, I do not understand it at all. Binomial problems: Advanced A machine that manufactures automobile parts is estimated to produce defective parts % of the time. If this estimate is correct, and parts produced by this machine are ...
Wednesday, May 26, 2010 at 5:42pm by Christi

Finite Math
A factory produces fuses, which are packaged in boxes of 26. Eight fuses are selected at random from each box for inspection. The box is rejected if at least one of these eight fuses is defective. What is the probability that a box containing twelve defective fuses will be ...
Thursday, March 15, 2012 at 8:45pm by Amanda

Binomial Math
The manager of Toy World has decided to accept a shipment of electronic games if there is no more than 1 defective electronic game in a random sample of size 17. What is the probability that he will accept the shipment if 15% of the electronic games is defective? (Round your ...
Sunday, January 27, 2013 at 2:49pm by Bersy

Math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 170 and a variance of 4. The material is considered defective if the breaking strength is less than 164 pounds. What is the probability that a single, randomly selected piece ...
Wednesday, August 24, 2011 at 3:42pm by Lee Ann

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 4. The material is considered defective if the breaking strength is less than 161 pounds. What is the probability that a single, randomly selected piece ...
Wednesday, August 24, 2011 at 8:50pm by apryl

algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 166 and a variance of 4. The material is considered defective if the breaking strength is less than 160 pounds. What is the probability that a single, randomly selected piece ...
Saturday, August 27, 2011 at 11:47pm by Anna Swain

alegbra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 167 and a variance of 9. The material is considered defective if the breaking strength is less than 161 pounds. What is the probability that a single, randomly selected piece ...
Sunday, August 28, 2011 at 2:33pm by apryl

algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9. The material is considered defective if the breaking strength is less than 166 pounds. What is the probability that a single, randomly selected piece ...
Thursday, September 1, 2011 at 8:26pm by Anonymous

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9. The material is considered defective if the breaking strength is less than 163 pounds. What is the probability that a single, randomly selected piece ...
Tuesday, November 1, 2011 at 12:18am by Kristen

MATH
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 174 and a variance of 9. The material is considered defective if the breaking strength is less than 168 pounds. What is the probability that a single, randomly selected piece ...
Sunday, December 11, 2011 at 2:39pm by mONIQUE

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 175 and a variance of 4. The material is considered defective if the breaking strength is less than 169 pounds. What is the probability that a single, randomly selected piece ...
Wednesday, March 14, 2012 at 12:20am by ruth

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 173 and a variance of 9. The material is considered defective if the breaking strength is less than 164 pounds. What is the probability that a single, randomly selected piece ...
Wednesday, August 29, 2012 at 4:59pm by Anonymous

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 167 and a variance of 9. The material is considered defective if the breaking strength is less than 158 pounds. What is the probability that a single, randomly selected piece ...
Tuesday, September 11, 2012 at 9:30am by Anonymous

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 175 and a variance of 9. The material is considered defective if the breaking strength is less than 166 pounds. What is the probability that a single, randomly selected piece ...
Sunday, December 2, 2012 at 11:41pm by jacque

Algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 172 and a variance of 9. The material is considered defective if the breaking strength is less than 163 pounds. What is the probability that a single, randomly selected piece ...
Monday, December 3, 2012 at 9:49pm by Angela

Algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 167 and a variance of 4. The material is considered defective if the breaking strength is less than 163 pounds. What is the probability that a single, randomly selected piece ...
Tuesday, December 4, 2012 at 7:29pm by Lost!!

algebra
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 156 pounds. What is the probability that a single, randomly selected piece ...
Thursday, December 6, 2012 at 2:25am by Anonymous

statistics
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 165 and a variance of 9. The material is considered defective if the breaking strength is less than 156 pounds. What is the probability that a single, randomly selected piece ...
Thursday, December 6, 2012 at 2:27am by Anonymous

math
The breaking strength (in pounds) of a certain new synthetic is normally distributed with a mean of 175 and a variance of 4. The material is considered defective if the breaking strength is less than 170 pounds. What is the probability that a single, randomly selected piece of...
Sunday, March 10, 2013 at 11:17pm by Andrew

algebra/math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 169 and a variance of 9. The material is considered defective if the breaking strength is less than 163 pounds. What is the probability that a single, randomly selected piece ...
Sunday, August 28, 2011 at 11:00am by Anonymous

maths-statistic
A manufacturer wants to assess the proportion of defective items in a large batch produce by a particular machine. He tests a random sample of 300 items and finds that 45 items are defective. If 200 such tests are performed and a 95% confidence interval calculated for each, ...
Tuesday, February 15, 2011 at 11:19pm by shasha

math
An efficiency expert has calculated that about 9.5% of the articles produced in a manufacturing plant are defective. This is equivalent to expressing the defective articles as a. 9 out of 15 b. 9 out of 50 c. 10 out of 95 d. 19 out of 100 e. 19 out of 200 please answer and ...
Wednesday, April 9, 2014 at 12:26pm by thomas

Statistics
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 167 and a variance of 9. The material is considered defective if the breaking strength is less than 158 pounds. What is the probability that a single, randomly selected piece ...
Thursday, September 13, 2012 at 9:48pm by Anonymous

Math Probability
A new shipment of 9 VCRs, which will be offered at a very low price, are delivered, Unknown to the manager, 4 of the VCRs are defective, Determine the probability that at least 1 of the first three VCRs sold is defective.Did I do this right? 1-5C3/9C3 =88.09% or do I do 1-(5/9...
Sunday, April 25, 2010 at 10:51pm by Rae

Math
In one hour, a factory packaged 150 boxes of light bulbs. Estimate the total number of defective light bulbs packaged that hour based on a sample of 8 boxes containing the following numbers of defective bulbs: 5, 3, 5, 1, 2, 9, 4, 3
Monday, February 3, 2014 at 4:18am by Lola

algebra 1
From a shipment of 350 light-bulbs, a sample of 70 was selected at random and tested. If 21 light-bulbs in the sample were found to be defective, how many defective light-bulbs would be expected in the entire shipment?
Sunday, September 18, 2011 at 5:22pm by alex

statistics
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 135 and a variance of 16. The material is considered defective if the breaking strength is less than 126.2 pounds. What is the probability that a single, randomly selected ...
Monday, December 16, 2013 at 9:39pm by Anonymous

college math
16. A study of a manufacturing process indicates that 120 of 6,000 units produced are defective. If a sampler selected 100 units, how many defective units would he expect to be present? (Points: 5) 2 5 6 10 17. Six red balls and four blue balls are placed in a container. What ...
Monday, November 7, 2011 at 1:39pm by Anonymous

business math 141
Two machines turn out all the products in a factory, with the first machine producing 45% of the product and the second 55%. The first machine produces defective products 8% of the time and the second machine 9% of the time What is the probability that a defective part is ...
Saturday, November 12, 2011 at 2:11pm by Taylor

Another binomial distribution question
hi, i'd also really like some help for another binomial distribution question, i have no idea where to start... the question is: A manufacturer makes 10,000 ball point pens per day and estimates that 400 will be defective. She decides that if a random sample of 10 pens contain...
Saturday, August 25, 2007 at 11:32pm by elle

math-probability
A factory produces fuses, which are packaged in boxes of 17. Three fuses are selected at random from each box for inspection. The box is rejected if at least one of these three fuses is defective. What is the probability that a box containing two defective fuses will be ...
Friday, March 16, 2012 at 11:58pm by Emma

math
the probility of buying a defective DVD is 0.002 what is the probility of buying a DVD that is not defective
Monday, April 6, 2009 at 8:10pm by Katie22

statistics
the percent defective for parts produced by a manufacturing process is targeted at 4%. The process is monitored daily by taking samples of sizes n=160 units. Suppose that today's sample contains 14 defectives. How many units would have to be sampled to be 95% confident that ...
Saturday, May 4, 2013 at 4:47pm by American Public University

statistics
A manufacturer of cell phones has decided that an assembly line will be considered to be operating satisfactorily if less than 0.02% of the phones produced per day are defective. To check the quality of a day's production, the company decides to randomly sample 40 phones from ...
Wednesday, February 22, 2012 at 3:10pm by Alyssa

Statistics
An electronic product contains 32 integrated circuits. The probability that any integrated circuit is defective is 0.02, and the integrated circuits are independent. The product operates only if there are no defective integrated circuits. What is the probability that the ...
Thursday, February 20, 2014 at 7:41pm by Ashley

statistics
A certain defect (D) is present in about 1 out of 1000 cars during production [P(D)=0.001], and a program of testing is to be carried out using a detection device which gives a positive reading with probability 0.99 for a defective car [P(+/D)=0.99] and with probability 0.05 ...
Friday, June 3, 2011 at 2:51pm by masaad

Statistics
4 calculators were selected at random from a sample of 44 calculators that were defective and 22 that were in good condition. Find the probability that all 4 calculators are defective. Ok, I'll just start this one. There are 66 choose 4 samples. yes/no? What is the P of 0,1,2,...
Friday, July 14, 2006 at 6:50pm by I love math & science !

MAT 115
Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be defective. About how...
Thursday, November 4, 2010 at 10:03pm by G

Statistics
Of the parts produced by a particular machine, 1.5% are defective. If a random sample of 11 parts produced by this machine contains 2 or more defective parts, the machine is shut down for repairs. Find the probability that the machine will be shut down for repairs based on ...
Saturday, November 30, 2013 at 9:55pm by HELP

Math
Here is my question: Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be...
Friday, November 21, 2008 at 10:03pm by A.W.

math
Business and finance. Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to ...
Friday, September 11, 2009 at 3:08pm by sally

Basic Math with Geometry
Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be defective. About how...
Thursday, January 21, 2010 at 5:07pm by Renetta

Math help again...
I'm trying to set up the problem to this question, but for some reason I am confuse and can't answer this question: 1) During a quality control test, Micronics found that 24 computer boards were defective. This amount was 0.8% of the computer boards tested. a. How many ...
Wednesday, December 3, 2008 at 2:36pm by Lisa

Math
Here is my question; Business and finance. Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than of...
Friday, November 21, 2008 at 9:26am by A.W.

Math
A factory has two machines that produce bolts. Machine I produces 80% of the daily output of bolts, and 9% of its bolts are defective. Machine II produces 20% of the daily output, and 5% of its bolts are defective.
Sunday, October 23, 2011 at 7:20pm by Anonymous

Algebra II
Two factory plants are making TV panels. Yesterday, Plant A produced 6000 fewer panels than Plant B did. Four percent of the panels from Plant A and 3% of the panels from Plant B were defective. How many panels did Plant A produce, if the two plants together produced 880 ...
Tuesday, April 1, 2014 at 10:16pm by Brice

math
Business and finance. Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line he finds more than 1/50 of the sample to be ...
Thursday, October 23, 2008 at 11:25pm by Joanne

Math
Julio works as a quality control expert in a beverage factory. The assembly line that he monitors produces about 20,000 bottles in a24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more than 1/50 of the sample to be defective. About how ...
Friday, July 31, 2009 at 9:06pm by Anonymous

Statistics
The quality-control inspector of a production plant will reject a batch of syringes if two or more defective syringes are found in a random sample of ten syringes taken from the batch. Suppose the batch contains 2% defective syringes. What is the probability that the batch ...
Tuesday, June 15, 2010 at 7:21pm by John

algebra 2
In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at random. If he puts each clock back with the rest of the shipment before selecting the next one, what is the probability that all three alarm clocks ...
Tuesday, November 12, 2013 at 5:47pm by hannah

Math
In a shipment of alarm clocks, the probability that one alarm clock is defective is 0.04. Charlie selects three alarm clocks at random. If he puts each clock back with the rest of the shipment before selecting the next one, what is the probability that all three alarm clocks ...
Friday, December 6, 2013 at 5:00pm by nikkie

statistics
A manufacturing company produces 10,000 plastic glasses per week. This company supplies plastic glasses to another company, which packages the glasses as part of picnic sets. The second company randomly samples 10 glasses from the supplier. If at least eight of the sampled ...
Saturday, May 4, 2013 at 3:26am by happy

statistics
A manufacturing company produces 10,000 plastic glasses per week. This company supplies plastic glasses to another company, which packages the glasses as part of picnic sets. The second company randomly samples 10 glasses from the supplier. If at least eight of the sampled ...
Sunday, May 5, 2013 at 11:52pm by happy

math (statistics)
A manufacturing company produces 10,000 plastic glasses per week. This company supplies plastic glasses to another company, which packages the glasses as part of picnic sets. The second company randomly samples 10 glasses from the supplier. If at least eight of the sampled ...
Monday, May 13, 2013 at 6:00am by michin

Math - Statistics
A company claims that no more than 5% of a particular product has a defect. In a shipment of 15 units, what is the probability of receiving 3 or 4 defective units? This cannot be answered the way the question is worded. What you need to know is the probability that a given ...
Monday, February 26, 2007 at 10:58am by Frederick

math 141
Three machines turn out all the products in a factory, with the first machine producing 40% of the products, the second machine 35%, and the third machine 25%. The first machine produces defective products 12% of the time, the second machine 3% of the time and the third ...
Tuesday, April 2, 2013 at 11:20pm by Tim

Math / Fractions
Here is another one that I am having trouble with. Julio works as a quality control expert in a beverage factory.The assembly line that he monitors produces about 20,000 bottles in a 24-hour period. Julio samples about 120 bottles an hour and rejects the line if he finds more ...
Saturday, September 6, 2008 at 6:34am by lifeontwofeet

math1
(ii) A factory has two machines. Past records show that the first machine produces 40% of output and the second machine produces 60% of output. Further 4% and 2% of the products produced by the first machine and the second machine were defectives. If a defective item is drawn ...
Thursday, May 3, 2012 at 5:08am by pankaj

math-Statistics
I have been working on the Type I error and a Type II error problem but now I can not figure out the Power of the test? A manufacturer of computer monitors receives shipments of LCD panels from a suppliers overseas. It is not cost effective to inspect each LCD panel for ...
Sunday, February 22, 2009 at 12:53pm by Sherri

statistics
Among 17 metal parts produced in a machine shop, 6 are defective. If a random sample of four of these metal parts is selected, find: (a) The probability that this sample will contain at least three defectives. (Do not round the intermediate answers. Round your answer to 4 ...
Friday, April 8, 2011 at 2:36pm by Kate

Statistics
1) A Motor Company has purchased steel parts from a supplier for several years and has found that 10% of the parts must be returned because they are defective. An order of 25 parts is received. What are the mean and standard deviation of the defective parts? A) Mean = 3.5; ...
Sunday, February 15, 2009 at 1:59pm by BEARHUG

Probability and Statistics (Continuation)
Assume 10% of the engines manufactured on an assembly line are defective. If engines are randomly selected one at a time and tested. What is the probability that the third nondefective engine will be found a)on the fifth trial? b) on or before the fifth trial? MY answers: a) P...
Sunday, September 29, 2013 at 1:10pm by Katy

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