In an article appearing in Today’s Health a writer states that the average numbe

Question

In an article appearing in Today’s Health a writer states that the average number of calories in a serving of popcorn is 75. To determine if the average number of calories in a serving of popcorn is different from 75, a nutritionist selected a random sample of 20 servings of popcorn and computed the sample mean number of calories per serving to be 78 with a sample standard deviation of 7. State the null and alternative hypotheses.

A.H0: 75, H1: < 75

B.H0:  = 75, H1:   75

C.H0: = 75, H1: > 75

D.H0: 75, H1: > 75

A.H0: 75, H1: < 75

B.H0:  = 75, H1:   75

C.H0: = 75, H1: > 75

D.H0: 75, H1: > 75

Explanation / Answer

Ans:

B.H0:  = 75, H1:   75

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