Test the claim that the mean GPA of night students is smaller than 2 at the 0.10 significance level.

The null and alternative hypothesis would be:

H0:p≤0.5H0:p≤0.5
H1:p>0.5H1:p>0.5

H0:p=0.5H0:p=0.5
H1:p≠0.5H1:p≠0.5

H0:p≥0.5H0:p≥0.5
H1:p<0.5H1:p<0.5

H0:μ=2H0:μ=2
H1:μ≠2H1:μ≠2

H0:μ≤2H0:μ≤2
H1:μ>2H1:μ>2

H0:μ≥2H0:μ≥2
H1:μ<2H1:μ<2

The test is:

left-tailed

right-tailed

two-tailed

Based on a sample of 20 people, the sample mean GPA was 1.95 with a sample standard deviation of 0.04

The p-value is: (to 2 decimals)

Based on this we:

1. (a) Reject the null hypothesis
2. (b) Fail to reject the null hypothesis

Answer rating: 100% (QA)

Sample size n 20 Sample mean 306 Standard deviation ... View the full answer