Question

Test the claim that the mean GPA of night students is significantly different than 2 at the 0.1 significance level.

The null and alternative hypothesis would be:

H0:μ≥2H0:μ≥2
H1:μ<2H1:μ<2

or

H0:μ=2H0:μ=2
H1:μ≠2H1:μ≠2

or

H0:p≤0.5H0:p≤0.5
H1:p>0.5H1:p>0.5

or

H0:p=0.5H0:p=0.5
H1:p≠0.5H1:p≠0.5

or

H0:μ≤2H0:μ≤2
H1:μ>2H1:μ>2

or

H0:p≥0.5H0:p≥0.5
H1:p<0.5H1:p<0.5

The test is:

left-tailed

or

two-tailed

or

right-tailed

Based on a sample of 80 people, the sample mean GPA was 1.97 with a standard deviation of 0.02

The p-value is: ____ (to 2 decimals)

Based on this we:

• Fail to reject the null hypothesis
• or
• Reject the null hypothesis

Answer 1