Test the claim that the mean GPA of night students is larger than 3.3 at the .10 significance level.
Test the claim that the mean GPA of night students is larger than 3.3 at the .10 significance level.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Test the claim that the mean GPA of night students is larger than 3.3 at the .10 significance level.
The null and alternative hypothesis would be:
H0:μ=3.3H0:μ=3.3
H1:μ>3.3H1:μ>3.3
H1:μ>3.3H1:μ>3.3
H0:p=0.825H0:p=0.825
H1:p<0.825H1:p<0.825
H1:p<0.825H1:p<0.825
H0:p=0.825H0:p=0.825
H1:p≠0.825H1:p≠0.825
H1:p≠0.825H1:p≠0.825
H0:μ=3.3H0:μ=3.3
H1:μ<3.3H1:μ<3.3
H1:μ<3.3H1:μ<3.3
H0:μ=3.3H0:μ=3.3
H1:μ≠3.3H1:μ≠3.3
H1:μ≠3.3H1:μ≠3.3
H0:p=0.825H0:p=0.825
H1:p>0.825H1:p>0.825
H1:p>0.825H1:p>0.825
The test is:
right-tailed
two-tailed
left-tailed
Based on a sample of 80 people, the sample mean GPA was 3.35 with a standard deviation of 0.06
The test statistic is: (to 2 decimals)
The critical value is: (to 2 decimals)
Based on this we:
- Reject the null hypothesis
- Fail to reject the null hypothesis
Im not understanding this material.
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