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Data was collected overall fitness before and after a physical fitness program. A higher score is indicitive of better fitness. Given the following data was the program effective. Use the paired t test at a= 0.01
a banks loan officer rates applicants for credit. the ratings are normally distributed with a mean of 200 and a
The time it takes a student to finish a electronics test has a uniform distribution between 50 and 70 minutes.
after a military campaign sample of 59 soldiers were examined it was determined that 32 of them suffered from lifetime
If these answers were combined into single statistic, how could we explain sample space? Mention how many elements are in sample space?
joe used a project management software package and has determined the following results for a given project. expected
The New York Times reported (L.J> Flynn, Tax Surfing, The New York Times, March 25, 2002, p. C10) that the mean time to download the home page for the internal Revenue Service (IRS) , was 0.8 second. Suppose that the download time was normally di..
Reis, Inc., a New York real estate research firm, tracks the cost of apartment rentals in the United States. In mid-2002, the nationwide mean apartment rental rate was $895 per month
What is the value of the population mean? What is the best estimate of this value? Explain why we need to use the t distribution. What assumption do you need to make?
Assuming that the process is operating correctly according to specifications, what is the probability that a sample will indicate that an adjustment is needed?
The value of "Z" chosen for constructing (calculating) the confidence interval estimate is determined by
The same for each of the four quarters next year. The seasonal factor for the second quarter is 145. Determine the seasonally adjusted sales for the second quarter of next year.
Draw the suitable 2x2 table, compute and interpret suitable measure of association.
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