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Sales staffInduction scoreFinal scorex Y1 51 752 52 723 59 824 45 675 61 756 54 797 56 788 67 829 63 8710 53 72
(a) Calculate the sample correlation coefficient by hand.(b) By use of a spreadsheet calculate the sample correlation coefficient.(c) Using a spreadsheet produce a graph of the results(d) What do you deduce from the above and what actions do you suggest?
A vending machine dispenses coffee into a twelve ounce cup. The amount of coffee dispensed into the cup is normally distributed with a standard deviation of 0.08 ounce.
Describe the independent variable and the dependent variables?
Suppose that people's heights (in centimeters) are normally distributed, with a mean of 165 and a standard deviation of 6. We find the heights of 40 people.
Clark Heter is an industrial engineer at Lyons Products. He would like to determine whether there are more units produced on the afternoon shift than on the day shift.
Company have MBA degrees. Also, 64 percent of the managers have MBA degrees. Using the probability formulas, find the proportion of employees who either have MBAs or are managers.
Assume that the annual rate of return for a common biotechnology stock is normally distributed with a mean of 5.5% and a standard deviation of 6%.
How many subsets of S contain either the number 6 or the number 15?
400 customers of the company and finds that 30 of them are actually not happy about the service. Set up the null and alternative hypotheses to test for the company's claim.
Research shows that the life time of Everlast automobile tires is normally distributed with a mean value of 70,000 miles and a standard deviation of 7,000 miles. What is the probability of having a tire that lasts more than 80,000 miles?
If a customer did not default on a loan, what is the probability that the rating system would have classified the applicant in the reject category?
What's the probability that among three randomly selected high school students
The data below were obtained for the years 1993 through 1998 and indicate the number of fireworks (in millions) used and the related injuries. Predict the number of injuries (provided there is a significant relationship) if 100 million fireworks a..
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