A national report claims that 70 of people eat out at least

A national report claims that 70% of people eat out at least two nights a week. 30 out of the 50 people surveyed reported that they ate out at least two nights a week.

- Can you state the rejection region? Use a .05 level of significance.

Reject H0 if z < 2.28 or z > -1.65

Reject H0 if t > 1.96 or z < -1.96

Reject H0 if z > 1.65 or z < -1.65

d. Reject H0 if z > 1.65

-. Can you state the Null and Alternative Hypothesis? Use a .05 level of significance.

a. H0: = 0.70

H1: 0.70

b. H0: < 0.70

H1: > 0.70

c. H0: 0.70

H1: =0.70

d. H0: > 0.70

H1: < 0.70

Solution

Critical value is 1.96 for alpha = 0.05. It is two tailed test. Hence

Reject Ho if Z>1.96 or Z< -1.96

a. H0: = 0.70

H1: 0.70