Question

In: Statistics and Probability

Test the claim that the mean GPA of night students is significantly different than 2.5 at...

Test the claim that the mean GPA of night students is significantly different than 2.5 at the 0.05 significance level.

The null and alternative hypothesis would be:

H0:p≥0.625H0:p≥0.625
H1:p<0.625H1:p<0.625

H0:p≤0.625H0:p≤0.625
H1:p>0.625H1:p>0.625

H0:p=0.625H0:p=0.625
H1:p≠0.625H1:p≠0.625

H0:μ≥2.5H0:μ≥2.5
H1:μ<2.5H1:μ<2.5

H0:μ=2.5H0:μ=2.5
H1:μ≠2.5H1:μ≠2.5

H0:μ≤2.5H0:μ≤2.5
H1:μ>2.5H1:μ>2.5



The test is:

right-tailed

left-tailed

two-tailed



Based on a sample of 70 people, the sample mean GPA was 2.48 with a standard deviation of 0.08

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

Solutions

Expert Solution

This is two-tailed test

TS = -2.09

p-value = 0.04

we reject the null hypothesis

Please rate

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Test the claim that the mean GPA of night students is significantly different than the mean...
Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.2 significance level. The null and alternative hypothesis would be: H0:μN=μD H1:μN≠μD H0:pN=pD H1:pN≠pD H0:μN≤μD H1:μN>μD H0:pN≤pD H1:pN>pD H0:μN≥μD H1:μN<μD H0:pN≥pD H1:pN<pD The test is: two-tailed right-tailed left-tailed The sample consisted of 70 night students, with a sample mean GPA of 3.41 and a standard deviation of 0.03, and 70 day students, with a sample mean GPA of...
Test the claim that the mean GPA of night students is significantly different than 3.1 at...
Test the claim that the mean GPA of night students is significantly different than 3.1 at the 0.01 significance level. The null and alternative hypothesis would be: H0:μ=3.1H0:μ=3.1 H1:μ≠3.1H1:μ≠3.1 H0:μ=3.1H0:μ=3.1 H1:μ<3.1H1:μ<3.1 H0:p=0.775H0:p=0.775 H1:p>0.775H1:p>0.775 H0:μ=3.1H0:μ=3.1 H1:μ>3.1H1:μ>3.1 H0:p=0.775H0:p=0.775 H1:p<0.775H1:p<0.775 H0:p=0.775H0:p=0.775 H1:p≠0.775H1:p≠0.775 The test is: two-tailed left-tailed right-tailed Based on a sample of 65 people, the sample mean GPA was 3.14 with a standard deviation of 0.05 The test statistic is:  (to 2 decimals) The positive critical value is:  (to 2 decimals) Based on this...
Test the claim that the mean GPA of night students is significantly different than 2.7 at...
Test the claim that the mean GPA of night students is significantly different than 2.7 at the 0.02 significance level. The null and alternative hypothesis would be: H 0 : μ ≤ 2.7 H 1 : μ > 2.7 H 0 : p ≥ 0.675 H 1 : p < 0.675 H 0 : p ≤ 0.675 H 1 : p > 0.675 H 0 : μ ≥ 2.7 H 1 : μ < 2.7 H 0 : μ =...
1. Test the claim that the mean GPA of night students is significantly different than the...
1. Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.1 significance level. The null and alternative hypothesis would be: H0:pN≤pDH0:pN≤pD Ha:pN>pDHa:pN>pD H0:pN≥pDH0:pN≥pD Ha:pN<pDHa:pN<pD H0:μN≥μDH0:μN≥μD Ha:μN<μDHa:μN<μD H0:μN≤μDH0:μN≤μD Ha:μN>μDHa:μN>μD H0:μN=μDH0:μN=μD Ha:μN≠μDHa:μN≠μD H0:pN=pDH0:pN=pD Ha:pN≠pDHa:pN≠pD The test is: right-tailed left-tailed two-tailed The sample consisted of 12 night students, with a sample mean GPA of 3.13 and a standard deviation of 0.04, and 10 day students, with a sample mean GPA...
**ASAP** Test the claim that the mean GPA of night students is significantly different than 2.8...
**ASAP** Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.1 significance level. The null and alternative hypothesis would be: 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 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 The test is: left-tailed two-tailed right-tailed Based on a sample of 35 people, the sample mean GPA was 2.85 with a standard deviation of 0.04 The p-value is:  (to 2 decimals) Based on this we: Reject the null hypothesis Fail to...
Test the claim that the mean GPA of Orange Coast students is significantly different than the...
Test the claim that the mean GPA of Orange Coast students is significantly different than the mean GPA of Coastline students at the 0.2 significance level. The null and alternative hypothesis would be: H0:pO≥pCH0:pO≥pC H1:pO<pCH1:pO<pC H0:μO=μCH0:μO=μC H1:μO≠μCH1:μO≠μC H0:μO≥μCH0:μO≥μC H1:μO<μCH1:μO<μC H0:μO≤μCH0:μO≤μC H1:μO>μCH1:μO>μC H0:pO=pCH0:pO=pC H1:pO≠pCH1:pO≠pC H0:pO≤pCH0:pO≤pC H1:pO>pCH1:pO>pC The test is: left-tailed right-tailed two-tailed The sample consisted of 20 Orange Coast students, with a sample mean GPA of 2.06 and a standard deviation of 0.02, and 20 Coastline students, with a sample mean...
Test the claim that the mean GPA of Orange Coast students is significantly different than the...
Test the claim that the mean GPA of Orange Coast students is significantly different than the mean GPA of Coastline students at the 0.2 significance level. The null and alternative hypothesis would be: H0:pO=pCH0:pO=pC H1:pO≠pCH1:pO≠pC H0:μO≥μCH0:μO≥μC H1:μO<μCH1:μO<μC H0:μO≤μCH0:μO≤μC H1:μO>μCH1:μO>μC H0:μO=μCH0:μO=μC H1:μO≠μCH1:μO≠μC H0:pO≤pCH0:pO≤pC H1:pO>pCH1:pO>pC H0:pO≥pCH0:pO≥pC H1:pO<pCH1:pO<pC The test is: left-tailed two-tailed right-tailed The sample consisted of 20 Orange Coast students, with a sample mean GPA of 2.79 and a standard deviation of 0.07, and 20 Coastline students, with a sample mean...
Test the claim that the mean GPA of night students is larger than the mean GPA...
Test the claim that the mean GPA of night students is larger than the mean GPA of day students at the .025 significance level. The null and alternative hypothesis H0:μN=μD H1:μN>μD The Test is Right Tailed The sample consisted of 30 night students, with a sample mean GPA of 3.23 and a standard deviation of 0.02, and 60 day students, with a sample mean GPA of 3.19 and a standard deviation of 0.06. The test statistic is: The critical value...
Test the claim that the mean GPA of night students is larger than 2.6 at the...
Test the claim that the mean GPA of night students is larger than 2.6 at the 0.10 significance level. - The null and alternative hypothesis would be: - The test is: A. two-tailed B. right-tailed C. left-tailed - Based on a sample of 25 people, the sample mean GPA was 2.62 with a standard deviation of 0.05 The p-value is: - Based on this we: A. Fail to reject the null hypothesis B. Reject the null hypothesis
Test the claim that the mean GPA of night students is larger than 3.3 at the...
Test the claim that the mean GPA of night students is larger than 3.3 at the .05 significance level. The null and alternative hypothesis would be: H0:p=0.825H0:p=0.825 H1:p≠0.825H1:p≠0.825 H0:μ=3.3H0:μ=3.3 H1:μ>3.3H1:μ>3.3 H0:μ=3.3H0:μ=3.3 H1:μ≠3.3H1:μ≠3.3 H0:p=0.825H0:p=0.825 H1:p<0.825H1:p<0.825 H0:μ=3.3H0:μ=3.3 H1:μ<3.3H1:μ<3.3 H0:p=0.825H0:p=0.825 H1:p>0.825H1:p>0.825 The test is: right-tailed two-tailed left-tailed Based on a sample of 45 people, the sample mean GPA was 3.32 with a standard deviation of 0.08 The test statistic is:  (to 2 decimals) The critical value is:  (to 2 decimals) Based on this we: Fail...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT