A company that makes cola drinks states that the mean caffeine content per 12 ou

Question

A company that makes cola drinks states that the mean caffeine content per 12 ounce bottle of cola is 40 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 415 milligrams. Assume the population is normally distributed and the population standard deviation is 6.7 milligrams. At alpha = 0.06, can you reject the company's claim? Complete parts (a) through (e) Identify H_0 and H_alpha. Choose the correct answer below. H_0: mu notequalto 40 H_alpha: mu = 40 H_0: mu notequalto 41.5 H_alpha: mu = 41.5 H_0: mu = 40 H_alpha: mu notequalto 40 H_0: mu greaterthanorequalto 40 H_alpha: mu

Explanation / Answer

a)option C is correct

b)critical values are =+/-1.88

please give detail about other parts as I am only been able to see part A and B

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