Folgers has specified that the average amount of coffee that goes into one of th
ID: 3378768 • Letter: F
Question
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?Explanation / Answer
Folgers has specified that the average amount of coffee that goes into one of th