Folgers has specified that the average amount of coffee that

Folgers has specified that the average amount of coffee that goes into one of their small coffee cans is not to exceed 13ounces. A quality control inspector for Folgers believes the company filling machines may be exceeding this average, so he takes a random sample of 9 cans. The sample averages is 13.24 ounces, with a sample variance of 0.16 ounces^2. Can the quality control inspector conclude that the Folgers filling machines are exceeding the specified limit at alpha-0.005? What is the null hypothesis? What is (are) the critical value(s)? What is the test statistic? What is the decision? What is the p-value? What is the 95% confidence interval? Walmart claims the average time waiting in their checkout lines is 8.3 minutes. A random sample of 20 walmart shoppers is taken and their time waiting in the checkout line is recorded in Excel, Test Walmart\'s claim at alpha = 10. What is the alternative hypothesis? What is the decision rule? What is the test statistic? What is the conclusion? What is the P-value? What is the 99% confidence interval?

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