A company that makes cola drinks states that the mean caffeine content per 12-ounce bottle of cola is 45 milligrams. Yo
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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. Yo
A company that makes cola drinks states that the mean caffeinecontent per 12-ounce bottle of cola is 45 milligrams. Youwant to test this claim. During your tests, you find that arandom sample of thirty 12-ounce bottles of cola has a meancaffeine content of 43.9 milligrams. Assume the population isnormally distributed and the population standard deviation is 6.5milligrams. At α=0.10, can you reject the company'sclaim? a) identify the H0 and the Ha, (with equal to,less than, more than, ect) b)find the critical values -the criticalvalue is ____ or -the critical values are (+/-)______ c)Identifythe rejection region(s) (shaded on the left, right or both endsd)find the standardized test statistic(round to 2 decimal places asneeded. e)decide whether to reject or fail to reject the nullhypothesis bases on where z is located(in the rejection region ornot) f)interperet the decision in the context of the original claimAt the 8% signifigance level, there _____ enough evidence to_____the company's claim that the mean caffeine content per12-ounce bottle of cola ______ _____milligrams
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