A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. You
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A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. You
company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. You want to test this claim. During your tests, you find that a random sample of thirty 12-ounce bottles of cola has a mean caffeine content of 47.4 milligrams. Assume the population is normally distributed and the population standard deviation is 6.8 milligrams. At a = 0.04, can you reject the company's claim? Complete parts (a) through (e). (a) Identify Ho and H₂ Choose the correct answer below. OA HH2474 H₂H<47.4 OC. Ho: #45 H₂H=45 E Ho H=45 H: #45 OB. Ho: *47.4 H₂: H=474 OD. Ho: 245 H₂:μ<45 XFH₂: H=47.4 H₂H474 (b) Find the critical value(s). Select the correct choice below and fill in the answer box within your choice. (Round to two decimal places as needed.) OA. The critical values are t OB. The critical value is THAT
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