Test the claim that the mean GPA of night students is larger than the mean GPA of day students at the 0.005 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:pN>pDH1:pN>pD H0:μN=μDH0:μN=μD H1:μN≠μDH1:μN≠μD H0:pN≥pDH0:pN≥pD H1:pNμDH1:μN>μD H0:μN≥μDH0:μN≥μD H1:μN<μDH1:μN<μD The test is: right-tailed left-tailed two-tailed The sample consisted of 50 night students, with a sample mean GPA of 3.03 and a standard deviation of 0.02, and 50 day students, with a sample mean GPA of 3 and a standard deviation of 0.06. 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 larger than the mean GPA of day students at the 0.005 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:pN>pDH1:pN>pD H0:μN=μDH0:μN=μD H1:μN≠μDH1:μN≠μD H0:pN≥pDH0:pN≥pD H1:pNμDH1:μN>μD H0:μN≥μDH0:μN≥μD H1:μN<μDH1:μN<μD The test is: right-tailed left-tailed two-tailed The sample consisted of 50 night students, with a sample mean GPA of 3.03 and a standard deviation of 0.02, and 50 day students, with a sample mean GPA of 3 and a standard deviation of 0.06. 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
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section: Chapter Questions
Problem 8CR
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Question
Test the claim that the
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:
right-tailed
left-tailed
two-tailed
The sample consisted of 50 night students, with a sample mean GPA of 3.03 and a standard deviation of 0.02, and 50 day students, with a sample mean GPA of 3 and a standard deviation of 0.06.
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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