7.2(9b)

A nutritionist claims that the mean tuna consumption by a person is

3.4

pounds per year. A sample of

70

people shows that the mean tuna consumption by a person is

3.1

pounds per year. Assume the population standard deviation is

1.22

pounds. At

=0.02,

can you reject the claim?

Question content area bottom

Part 1

(a) Identify the null hypothesis and alternative hypothesis.

A.

H0:

3.4

Ha:

>3.4

B.

H0:

3.1

Ha:

>3.1

C.

H0:

3.1

Ha:

=3.1

D.

H0:

>3.1

Ha:

3.1

E.

H0:

=3.4

Ha:

3.4

Your answer is correct.

F.

H0:

>3.4

Ha:

3.4

Part 2

(b) Identify the standardized test statistic.

z=enter your response here

(Round to two decimal places as needed.)