Test the claim that the mean GPA of night students is larger than 2.8 at the...

Test the claim that the mean GPA of night students is larger than 2.8 at the 0.10 significance level.

The null and alternative hypothesis would be:

H0:μ=2.8H0:μ=2.8
H1:μ≠2.8H1:μ≠2.8

H0:p=0.7H0:p=0.7
H1:p≠0.7H1:p≠0.7

H0:μ≥2.8H0:μ≥2.8
H1:μ<2.8H1:μ<2.8

H0:p≤0.7H0:p≤0.7
H1:p>0.7H1:p>0.7

H0:p≥0.7H0:p≥0.7
H1:p<0.7H1:p<0.7

H0:μ≤2.8H0:μ≤2.8
H1:μ>2.8H1:μ>2.8

The test is:

right-tailed

two-tailed

left-tailed

Based on a sample of 40 people, the sample mean GPA was 2.81 with a standard deviation of 0.04

The test statistic is: (to 2 decimals)

The p-value is: (to 2 decimals)

Based on this we:

Fail to reject the null hypothesis
Reject the null hypothesis

Expert Solution

orchestra answered 1 year ago

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