Friday

January 30, 2015

January 30, 2015

Total # Posts: 24

**Math**

No 8:15 is the same as a quarter after 8
*April 22, 2013*

**life orientation**

floods
*April 21, 2013*

**6th grade math**

Thank you
*January 9, 2013*

**6th grade math**

a model of a park was built on a scale of 1.5 inches to 50 feet if the distance between two trees in the park is 150 feet what is the distance on the model.
*January 9, 2013*

**algerbra**

Using point-slope form, write the equation of the line that passes through (2, –1) and has a slope of –5.
*October 18, 2012*

**chemistry**

how do you solve the mass in mg of 19 representative particle step by step?
*December 9, 2009*

**please help**

Suppose a brewer intends to use the triangle taste test method to identify the best applicants for the position of “taster.” (It does so because the company will want their tasters to have sensitive palates, and it will need someway of determining beforehand whether ...
*December 3, 2009*

**Error ! question**

If the company administers n=10 identical triangle taste tests to this job applicant and if we say that ‘x’ is the number of correct identifications made (in n=10 trials), then the Rejection Region is the “set of values which ‘x’ could assume that will...
*December 2, 2009*

**statistics**

Assume we draw a simple random sample from a population having a mean of 100 and a standard deviation of 16. What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes? (a.) n = 50 ____________ (b...
*December 2, 2009*

**Statistics **

Rising prescription drug prices caused the U.S. Congress to consider laws that would force pharmaceutical companies to offer prescription discounts to senior citizens without drug benefits. The House Government Reform Committee provided data on the prescription cost of some of...
*November 28, 2009*

**Probability - Brewer**

Suppose a brewer intends to use the triangle taste test method to identify the best applicants for the position of “taster.” (It does so because the company will want their tasters to have sensitive palates, and it will need someway of determining beforehand whether ...
*November 25, 2009*

**Salary Related - Stats question**

The monthly starting salaries of students who receive engineering degrees have a standard deviation of $600. What sample size should be selected so that there is 0.95 probability of estimating the mean monthly income within $150 or less?
*November 25, 2009*

**sample size question**

A federal funding program is available to low-income neighborhoods. To qualify for funding, a neighborhood must have a mean household income of less than $15,000 per year. Neighborhoods with mean annual household income of $15,000 or more do not qualify. Funding decisions are ...
*November 25, 2009*

**Probability - Stats**

12. Recall from our discussion in class (also see the website) that the hypothesis testing framework can be applied by food and beverage companies seeking to hire “tasters” who have above average taste-discrimination ability. Suppose a brewer intends to use the ...
*November 25, 2009*

**Statistics**

Dear Math Guru, Can you please help me how to use the chi square formula
*November 25, 2009*

**Statistics**

A study of voting preferences among enlisted soldiers (of differing educational levels) in the military reveals the follow patterns (the sample size if 445). 1 Of 395 high school graduates, 90 describe themselves as Democrats, 170 as Independents, and 135 as Republicans 2 Of ...
*November 25, 2009*

**Stats**

To compare the durabilities of two paints for highway use, 12 four-inch wide lines of each paint were laid down across a heavily-traveled road. The order was decided at random. After a period of time, reflectometer readings were obtained for each line. The higher the reading, ...
*November 25, 2009*

**Stats**

Can you please help me solve for N
*November 25, 2009*

**Stats**

For n = 100: Lower limit: 100 - 2*16/sqrt(100) = 96.8 Upper limit: 100 + 2*16/sqrt(100) = 103.2 I can't get the answer for the other ones
*November 25, 2009*

**Stats**

I don't understand how to get the answer using the formula.
*November 25, 2009*

**Stats**

Assume we draw a simple random sample from a population having a mean of 100 and a standard deviation of 16. What is the probability that a sample mean will be within plus-or-minus two of the population mean for each of the following sample sizes? n = 50 n=100 n=200 n=400
*November 25, 2009*

**Stats**

Rising prescription drug prices caused the U.S. Congress to consider laws that would force pharmaceutical companies to offer prescription discounts to senior citizens without drug benefits. The House Government Reform Committee provided data on the prescription cost of some of...
*November 25, 2009*

**Stats**

Time/CNN voter polls monitored public opinion for the presidential candidates during the 2000 presidential election campaign. One Time/CNN poll conducted by Yankelovich Partners, Inc., used a sample of n = 589 likely voters (Time, June 26, 2000). Assume the population ...
*November 25, 2009*

**lasec**

a b a a a
*August 16, 2008*

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