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Ms. Lisa Monnin is the budget director for the New Process Company. She would like to compare the daily travel expenses for the sales staff and the audit staff. She collected the following sample information.
Sales: 131, 135, 146, 165, 136, 142
Audit: 130, 102, 129, 143, 149, 120, 139
At the .10 significance level, can she conclude that the mean daily expenses are greater for the sales staff than the audit staff? What is the p-value? (Show all work)
Describe the chi-square test of independence. How is this test different from the chi-square goodness-of-fit test? Are the assumptions underlying each of these tests the same?
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An automobile assembly line operation has a scheduled mean completion time,u , of 13.5 minutes. The standard deviation of completion times is 1.7 minutes.
There are twelve months. Given the cohort of 100 which starts the program, about how many are left after twelve months?
Do you think it would be justified for people of certain racial or ethnic groups to be subject to additional security checks at airport check points?
The sales of Lexus automobiles in the Detroit area follow a Poisson distribution with a mean of 3 per day. What is the probability that for five consecutive days at least one Lexus is sold?
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Write down the objective coefficient ranges for three components? Interpret these ranges for company management.
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Shows a sample mean of 1,261 with a standard deviation of 59. Should Pennsylvania adopt the new system for all toll roads in the state?
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