72.(10)

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

37.7

milligrams. Assume the population is normally distributed and the population standard deviation is

6.7

milligrams. At

=0.03,

can you reject the company's claim? Complete parts (a) through (e).

Question content area bottom

Part 1

(a) Identify

H0

and

Ha.

Choose the correct answer below.

A.

H0:

40

Ha:

>40

B.

H0:

37.7

Ha:

>37.7

C.

H0:

=40

Ha:

40

D.

H0:

=37.7

Ha:

37.7

E.

H0:

37.7

Ha:

=37.7

F.

H0:

40

Ha:

=40