Test the claim that the mean GPA of night students is larger than 2.2 at the 0.01 significance level. The null and alternative hypothesis would be: H0:p≤0.55H0:p≤0.55 H1:p>0.55H1:p>0.55 H0:p=0.55H0:p=0.55 H1:p≠0.55H1:p≠0.55 H0:μ≤2.2H0:μ≤2.2 H1:μ>2.2H1:μ>2.2 H0:μ≥2.2H0:μ≥2.2 H1:μ<2.2H1:μ<2.2 H0:μ=2.2H0:μ=2.2 H1:μ≠2.2H1:μ≠2.2 H0:p≥0.55H0:p≥0.55 H1:p<0.55H1:p<0.55 The test is: left-tailed right-tailed two-tailed Based on a sample of 75 people, the sample mean GPA was 2.22 with a standard deviation of 0.07 The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals) Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
Test the claim that the mean GPA of night students is larger than 2.2 at the 0.01 significance level. The null and alternative hypothesis would be: H0:p≤0.55H0:p≤0.55 H1:p>0.55H1:p>0.55 H0:p=0.55H0:p=0.55 H1:p≠0.55H1:p≠0.55 H0:μ≤2.2H0:μ≤2.2 H1:μ>2.2H1:μ>2.2 H0:μ≥2.2H0:μ≥2.2 H1:μ<2.2H1:μ<2.2 H0:μ=2.2H0:μ=2.2 H1:μ≠2.2H1:μ≠2.2 H0:p≥0.55H0:p≥0.55 H1:p<0.55H1:p<0.55 The test is: left-tailed right-tailed two-tailed Based on a sample of 75 people, the sample mean GPA was 2.22 with a standard deviation of 0.07 The test statistic is: (to 2 decimals) The p-value is: (to 2 decimals) Based on this we: Reject the null hypothesis Fail to 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
Related questions
Question
Test the claim that the
The null and alternative hypothesis would be:
H0:p≤0.55H0:p≤0.55
H1:p>0.55H1:p>0.55
H1:p>0.55H1:p>0.55
H0:p=0.55H0:p=0.55
H1:p≠0.55H1:p≠0.55
H1:p≠0.55H1:p≠0.55
H0:μ≤2.2H0:μ≤2.2
H1:μ>2.2H1:μ>2.2
H1:μ>2.2H1:μ>2.2
H0:μ≥2.2H0:μ≥2.2
H1:μ<2.2H1:μ<2.2
H1:μ<2.2H1:μ<2.2
H0:μ=2.2H0:μ=2.2
H1:μ≠2.2H1:μ≠2.2
H1:μ≠2.2H1:μ≠2.2
H0:p≥0.55H0:p≥0.55
H1:p<0.55H1:p<0.55
H1:p<0.55H1:p<0.55
The test is:
left-tailed
right-tailed
two-tailed
Based on a sample of 75 people, the sample mean GPA was 2.22 with a standard deviation of 0.07
The test statistic is: (to 2 decimals)
The p-value is: (to 2 decimals)
Based on this we:
- Reject the null hypothesis
- Fail to reject the null hypothesis
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