1. An employment information service claims the mean annual payfor full-time workers without a high school diploma is less than$19,100. The annual pay for a random sample of 8 full-time non-highschool graduates is listed below. Salaries for people without highschool diplomas are normally distributed. Based on thisinformation, you decide to
18,165Â Â Â Â Â Â Â Â Â Â Â Â 16,012Â Â Â Â Â Â Â Â Â Â Â Â 18,803Â Â Â Â Â Â Â Â Â Â Â Â 19,864
17,328Â Â Â Â Â Â Â Â Â Â Â Â 21,445Â Â Â Â Â Â Â Â Â Â Â Â 19,237Â Â Â Â Â Â Â Â Â Â Â Â 18,316
2. A company that makes cola drinks states that the meancaffeine content per one 12-ounce bottle of cola is 35 milligrams.You believe that the mean caffeine content is not 35 milligrams.You decide to test this claim. During your tests, you find that arandom sample of thirty 12-ounce bottles of cola has a meancaffeine content of 38.2 milligrams with a standard deviation of7.5 milligrams.  Based on this information, you decideto
