Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the 0.01 significance level. The null and alternative hypothesis would be: H0:pN=pDH0:pN=pD H1:pN≠pDH1:pN≠pD H0:pN≥pDH0:pN≥pD H1:pNμDH1:μN>μD H0:pN≤pDH0:pN≤pD H1:pN>pDH1:pN>pD H0:μN≥μDH0:μN≥μD H1:μN<μDH1:μN<μD H0:μN=μDH0:μN=μD H1:μN≠μDH1:μN≠μD The test is: two-tailed left-tailed right-tailed The sample consisted of 45 night students, with a sample mean GPA of 2.48 and a standard deviation of 0.07, and 45 day students, with a sample mean GPA of 2.51 and a standard deviation of 0.08. 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
Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the 0.01 significance level. The null and alternative hypothesis would be: H0:pN=pDH0:pN=pD H1:pN≠pDH1:pN≠pD H0:pN≥pDH0:pN≥pD H1:pNμDH1:μN>μD H0:pN≤pDH0:pN≤pD H1:pN>pDH1:pN>pD H0:μN≥μDH0:μN≥μD H1:μN<μDH1:μN<μD H0:μN=μDH0:μN=μD H1:μN≠μDH1:μN≠μD The test is: two-tailed left-tailed right-tailed The sample consisted of 45 night students, with a sample mean GPA of 2.48 and a standard deviation of 0.07, and 45 day students, with a sample mean GPA of 2.51 and a standard deviation of 0.08. 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
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the 0.01 significance level.
The null and alternative hypothesis would be:
H0:pN=pDH0:pN=pD
H1:pN≠pDH1:pN≠pD
H1:pN≠pDH1:pN≠pD
H0:pN≥pDH0:pN≥pD
H1:pN<pDH1:pN<pD
H1:pN<pDH1:pN<pD
H0:μN≤μDH0:μN≤μD
H1:μN>μDH1:μN>μD
H1:μN>μDH1:μN>μD
H0:pN≤pDH0:pN≤pD
H1:pN>pDH1:pN>pD
H1:pN>pDH1:pN>pD
H0:μN≥μDH0:μN≥μD
H1:μN<μDH1:μN<μD
H1:μN<μDH1:μN<μD
H0:μN=μDH0:μN=μD
H1:μN≠μDH1:μN≠μD
H1:μN≠μDH1:μN≠μD
The test is:
two-tailed
left-tailed
right-tailed
The sample consisted of 45 night students, with a sample mean GPA of 2.48 and a standard deviation of 0.07, and 45 day students, with a sample mean GPA of 2.51 and a standard deviation of 0.08.
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
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