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May 3, 2016

Search: defective

Number of results: 474

Data Management
Sorry...i wrote the previous questions wrong.. The producer of HB pencils has 720 pencils randomly chosen from each day's productions. A defect rate of 15% is acceptable. a) Assuming that 15% of all manufactured pencils are defective, what is the probability of finding at ...
January 13, 2008 by Jamey

statistic
a shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units
April 17, 2012 by desmond

math 221n
A shipment of 40 television sets contains 3 defective units. How many ways can a vending company can buy five of these units and receive no defective units?
August 27, 2014 by anu

math
A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that exactly 5 bulbs in a carton of 144 will ne defective?
January 26, 2011 by Jeff

Math
during the warranty period, 6% of their computers are returned because they have defective keyboards, 5% are returned because they have defective disk drives, and 1% are returned because both the keyboard and the disk drive are defective. What is the probability that a ...
July 27, 2013 by Sarah

Statistics
A stationary store has decided to accept a large shipment of ball-point pens if an inspection of 20 randomly selected pens yields no more than two defective pens. a) find the probability that this shipment is accepted if 5% of the total shipment is defective. b) find the ...
August 7, 2013 by Elayna

stastics
If 1.5% of the bolts made by an automotive factory are defective, what is the probability that in a shipment of 200 bolts, there are 6 defective bolts? Place your answer, rounded to four decimal places, in the blank.
July 8, 2012 by jen

math
Suppose that 30% of a company's television sets are manufactured at a plant in Portland and 70% at a plant in Houston. Of those made in Portland, 3% are defective, and of those made in Houston 9% are defective. If you buy a defective set from the company, what is the ...
March 22, 2011 by Anonymous

Statistics
Find the probability that at most 5 defective bolts will be found in a box of 200 bolts if it is known that 2 per cent of such bolts are expected to be defective .(you may take the distribution to be Poisson; e-4= 0.0183).
October 26, 2010 by Shams

math
A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that exactly 5 bulbs in a carton of 144 will ne defective? Did not understand the posted answer before, need it simplified.
January 26, 2011 by Jeff

Maths
In a large lot of electric light bulbs,5% of the bulbs are defective.calculate the probability that a random sample of 20 will contain at most 2 defective bulbs? Try ;->Pr=nCx p^xq^n-x .pr(2D)=20C2(0.05)^2(0.95)^18;->=2.2/ANS
June 5, 2014 by Destiny

Math
In a shipment of 1000 light bulbs 1/40 of the bulbds were defective. What is the ratiio of defective bulbs to nondefective bulbs?
April 18, 2011 by ashely

Probability
Factories A and B produce computers. Factory A produces 2 times as many computers as factory B. The probability that an item produced by factory A is defective is 0.012 and the probability that an item produced by factory B is defective is 0.04. A computer is selected at ...
April 26, 2011 by Julie

math
A manager of an electronics store takes a random sample of large shipments of circuit boards to determine if he will accept the delivery. he randomly samples 20 boards from a shipment and will reject the delivery if more than 1 circuit board is defective. if the manufacturer ...
March 5, 2013 by jack

statistics
In a random sample of 400 electrical components,100 are found to be defective.if the hypothesis is that 20% of the components are defective,what is the standard error of the sample proportion
March 13, 2011 by sharon

statistics
A certain type of dvd player is sold at just two stores. 30% of sales are from store A and 70% of sales are from store B. 2.7% of the dvd players sold at store A are defective while 3.7% of the dvd players sold at store B are defective. If Kate receives one of these dvd ...
March 16, 2015 by Amy

math
In a shipment of 50 calculators,4 are defective. Two calculators are randomly selected and tested. What is the probability that both are defective if the first one is not replaced after being tested?
May 13, 2014 by Miki

Math
The panels for the Pulsar 32-inch TV are manufactured in three locations and then shipped to the main plant for final assembly. Plants A, B, and C supply 50%, 30%, and 20%, respectively of the panels.The quality-control department of the company has determined that 1% of the ...
November 5, 2012 by Natalie

statistic and probability
a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)
September 20, 2012 by nitz

statistics and probability
A company manufactures washers, about 5% of which are defective. If a random sample of 100 washers are inspected, what is the probability that fewer than 4 are defective?
November 2, 2014 by ashley

STATISTICS
The probability that a certain production process will produce a defective part is 0.20. If a box contains 12 parts, the probability that it will contain 6 defective parts is?
March 21, 2016 by NARUTO

statistics
Factories A, B and C produce computers. Factory A produces 3 times as many computers as factory C, and factory B produces 6 times as many computers as factory C. The probability that a computer produced by factory A is defective is 0.02, the probability that a computer ...
February 22, 2015 by cindy

probability
a disk drive is randomly selected from 50 available disk drives, of which five are defective. What is the probability that it is not defective?, hope you answer this, thanks! :)
September 21, 2012 by nitz

STATISTICS
The probability that a certain production process will produce a defective part is 0.20. If a box contains 12 parts, the probability that there will be 6 or 7 defective parts is ??
March 21, 2016 by NARUTO

Algebra1
A CELL PHONE ORDDERS 500 NEW PHONES FROM A MANFACTURE.IF THE PROBABLITY OF A PHONE BEING DEFECTIVE IS 2.6% PREDICT HOW MANY OF THE PHONES ARE LIKELY TO BE DEFECTIVE.ROUND TO THE NEAREST WHOLE NUMBER
December 5, 2011 by devin

EEE
the solve of the shipment of 10 items has 2 items defective and 8 items are non defective.IN THE inspection of the shipment a sample of items will be selected and tested.if a defective items is found the shipment of 10 items will rejected.in a sample of 5 items what is the ...
October 15, 2011 by ibrahim

Math Finite
A box contains 15 pens of which 4 are defective. A random sample of 3 pens is taken without replacement and without regard to order. What is the probability of selecting at least one defective pen?
December 9, 2010 by Amy

statistics
5. Suppose a manufacturer of computer chips is experiencing an average of 2% defective chips. (a) If a lot contains 1000 chips, what is the probability that more than 25 chips are defective? HINT. Use the normal approximation to the binomial.
March 23, 2014 by Marisol

Math
In a shipment of 400 parts 14 are found to be defective how many defective parts should be expected in a shipment of 1000? 125
October 16, 2013 by Jerald

algebra.. PLEASE help me!!
A company manufactured 1,000 televisions. Testing showed that 20 of the televisions were defective. PART A: What is the experimental probability that the next television will be defective? PART B: Based on the probability in PART A, how many of the next 5,000 televisions ...
April 11, 2013 by Alexandrea

science
Two machines A and B produce respectively 60% and 40% of the total number of items of a factory. The percentages of defective output for A and B are 3% and 2% respectively. Suppose an item is selected at random, and is found to be defective. The probability that the item was ...
July 23, 2012 by chinthaka

Statistics
There are 6 batteries. Two are defective. If you pull out two batteries, what is the probability that neither are defective? Is this how you solve it? 4/6 X 3/5
June 20, 2011 by Todd

statistics
in a shipment of 7 items there are three defective items. at random 4 items are selected what is the expected number of defective items?
January 15, 2016 by arun

Probabilities
Need some help please! A box contains four good light bulbs and three defective ones. Bulbs are selected one at a time (without replacement). Find the probability that the second defective bulb is found on the third selection.
June 10, 2015 by Bianca T

Math
A manufacturer samples 100 wires for quality testing. Four of the wires are found to be defective. If 750 wires are produced in one hour, how many should the manufacturer expect to be defective? A.30 B.60 C.75 D.96
April 29, 2014 by Candy

math
im a girl ok um 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? A. 15 B. 30 C. 38 D. 67
February 25, 2016 by jj buenrostro

math
in a shipment of 20 computers, 3 are defective three computers are randomly selected and tested. what is the probability that all 3 are defective if the first and second ones are not replaced after being tested. a. 1/760 b.1/1140 c.27/8000 d.3/5000 i chose D, is this correct
May 17, 2010 by Sara!

statistics
at the tire store, 10 out of every 100 tires are defective. if your parents randomly choose and purchase 4 new tires for a family vehicle from a set of 100 newly shipped titres, what is the probability that all four will be defective
November 12, 2014 by karen

Probability
An assembly line has two inspectors. The probability that the first inspector will miss a defective item is 0.05. If the defective item passes the first inspector, the probability that the second inspector will miss it is 0.01. What is the probability of the event that a ...
November 11, 2014 by KG

statistics
In a box of thirty AAA batteries, there are three defective batteries. Two batteries are randomly selected and tested. What is the probability that both are defective, if the first one is not replaced after being tested?
September 19, 2010 by Lori

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?
January 24, 2014 by James

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?
January 24, 2014 by James

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?
February 3, 2014 by Na Bug

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?
May 14, 2014 by sam

math
Mary works in a factory that produces 1,000 telephones each day. When 30 telephones were sampled, it was found that 9 were defective. Estimate how many telephones are defective each day.
November 25, 2015 by Anonymous

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?
February 20, 2012 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 ...
February 11, 2012 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?
February 20, 2011 by hanna

MATH PROBABILITY
The probability of a machine producing a defective product is .08. Find the probability that, in a run of 200 products, there are exactly 12 defective products
September 17, 2015 by Emma

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 ...
February 11, 2012 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 ...
February 11, 2012 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...
March 6, 2007 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
April 5, 2012 by Taskeen

statistics help please :(
A shipment of 50 parts contains 11 defective parts. Suppose 3 parts are selected at random, without replacement, from the shipment. What is the probability that exactly 2 parts are not defective?
December 14, 2015 by Izabella

quantitative techniques
a manufacturer of a cotter pins know that 5% of his product is defective if he sells cotter pins in boxes of 100 pins and guarantee that no more than 10 pins will be defective find the probability that a box will fail to meet the guaranteed quality
April 14, 2015 by saloni garg

Statistics/Binomal
I really need help I do not understand how to start this problem. A machine that manufactures automobile parts produces defective parts 15% of the time. If 7 parts produced by this machine are randomly selected, what is the probability that at least 3 of the parts are ...
August 14, 2015 by Mary Ann

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
January 3, 2010 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.
March 5, 2013 by sarah

statistics
A shipment of 50 parts contains 12 defective parts. Suppose 3 parts are selected at random, without replacement, from the shipment. What is the probability that all 3 parts are defective?
December 13, 2015 by blah

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 ...
December 13, 2006 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
March 29, 2010 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
March 29, 2010 by Hanna

math
A factory finds out that on the average 20% of bolts produced by the given machine will be defective.if 10 bolts are selected at random from the day's production of this machine,find the probability that 1.exactly 2 will be defective. (this question is base on probability and ...
March 26, 2016 by farahan

Algebra 1
A community group orders 1,250 water bottles to donate to the runners in a marathon. If the probability of a water bottle being defective is 1.2%, predict how many of the water bottles are likely to be defective. Round your answer to the nearest whole number. a. 12 b. 15 c. ...
May 20, 2014 by Nyla

Math
In a shipment of 400 parts, 15 were found to be defective. How many defective parts should be expected in a shipment of 1000 parts?
December 10, 2015 by Megan

statistics
A company has four production sections viz., S1, S2, S3 and S4 which contribute 30%, 20%, 28% and 22% of the total output. It was observed that those sections respectively produced 1%, 2%, 3% and 4% defective units. If a unit is selected at random and found to be defective, ...
February 4, 2015 by Harry

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
July 22, 2012 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 ...
October 17, 2010 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
March 27, 2012 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
March 27, 2012 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.
June 18, 2011 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?
December 10, 2011 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
February 11, 2012 by ashely

inferential statistics
A supplier of company X makes on an average of 5 defective pieces. The company accepts a sample if there are no more than 7 defective pieces. What are the chances that the company will reject the sample?
August 19, 2014 by shailja

Probability
A company produces light bulbs, and finds that approximately 2% of the light bulbs they produce are defective. The company wants to make a money-back guarantee that in every box of 10 light bulbs, no more than 1 will be defective. What is the probability that a random box of ...
April 28, 2015 by Peanut

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 ...
January 29, 2010 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....
February 16, 2009 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
June 25, 2011 by Harley

statistics
Unknown to a quality-control inspector, 20% of a very large shipment of electric switches are defective. The inspector has been told to reject the shipment if, in a sample of 15 switches, 2 or more are defective. The probability that the shipment will be rejected is: I do not ...
July 7, 2015 by helpmeplease

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
July 11, 2013 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 ...
September 12, 2010 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 ...
August 25, 2011 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 ...
March 9, 2012 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?
April 3, 2012 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 ...
June 3, 2012 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 ...
August 27, 2012 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 ...
December 21, 2012 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 ...
March 17, 2013 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...
March 6, 2014 by Walden University

statistics
the breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 125 and a variance of 25. The material is considered defective if the breaking strength is less than 113 pounds. What is the probability that a single, randomly selected piece ...
June 3, 2014 by Anonymous

statistics
the breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 125 and a variance of 25. The material is considered defective if the breaking strength is less than 113 pounds. What is the probability that a single, randomly selected piece ...
June 3, 2014 by leelee kay

math
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 157.8 pounds. What is the probability that a single, randomly selected piece...
December 9, 2014 by libby

Math
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 125 and a variance of 25. The material is considered defective if the breaking strength is less than 113.5 pounds. What is the probability that a single, randomly selected ...
March 1, 2015 by Denise

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?
February 20, 2011 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 ...
December 4, 2011 by Anonymous

Statistics/I am confused
The breaking strength (in pounds) of a certain new synthetic is normally distributed, with a mean of 115 and a variance of 25. The material is considered defective if the breaking strength is less than 105 pounds. What is the probability that a single, randomly selected piece ...
May 31, 2014 by Mary Ann

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 ...
February 6, 2011 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?
April 30, 2013 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?
May 1, 2013 by pandora

Math
In a sample of 78 widgets, 2 were defective. How many defective widgets would you expect in a sample of 468 widgets?
June 12, 2014 by John

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