Test the claim that the mean GPA of night students is smaller than 2.1 at the 0.025 significance level. The null and alternative hypothesis would be:   H0:μ=2.1H0:μ=2.1 H1:μ≠2.1H1:μ≠2.1 H0:p≤0.525H0:p≤0.525 H1:p>0.525H1:p>0.525 H0:μ≤2.1H0:μ≤2.1 H1:μ>2.1H1:μ>2.1 H0:p≥0.525H0:p≥0.525 H1:p<0.525H1:p<0.525 H0:μ≥2.1H0:μ≥2.1 H1:μ<2.1H1:μ<2.1 H0:p=0.525H0:p=0.525 H1:p≠0.525H1:p≠0.525 The test is:   right-tailed two-tailed left-tailed Based on a sample of 40 people, the sample mean GPA was 2.06 with a standard deviation of 0.04 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

Test the claim that the proportion of men who own cats is smaller than 90% at the .05 significance level.The null and alternative hypothesis would be: H0:μ=0.9H0:μ=0.9H1:μ>0.9H1:μ>0.9 H0:p=0.9H0:p=0.9H1:p>0.9H1:p>0.9 H0:p=0.9H0:p=0.9H1:p≠0.9H1:p≠0.9 H0:μ=0.9H0:μ=0.9H1:μ≠0.9H1:μ≠0.9 H0:μ=0.9H0:μ=0.9H1:μ<0.9H1:μ<0.9 H0:p=0.9H0:p=0.9H1:p<0.9H1:p<0.9 The test is: right-tailed two-tailed left-tailed Based on a sample of 65 people, 87% owned catsThe test statistic is:  (to 2 decimals)The critical value is:  (to 2 decimals)Based on this we: Fail to reject the null hypothesis Reject the null hypothesis I dont understand this.

Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the 0.10 significance level.The null and alternative hypothesis would be:   H0:μN=μDH0:μN=μDH1:μN≠μDH1:μN≠μD H0:μN≥μDH0:μN≥μDH1:μN<μDH1:μN<μD H0:pN≥pDH0:pN≥pDH1:pN<pDH1:pN<pD H0:pN=pDH0:pN=pDH1:pN≠pDH1:pN≠pD H0:μN≤μDH0:μN≤μDH1:μN>μDH1:μN>μD H0:pN≤pDH0:pN≤pDH1:pN>pDH1:pN>pD The test is:   right-tailed left-tailed two-tailed The sample consisted of 55 night students, with a sample mean GPA of 2.32 and a standard deviation of 0.05, and 55 day students, with a sample mean GPA of 2.37 and a standard deviation of 0.02.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 different from the mean GPA of day students at the 0.01 significance level. The null and alternative hypothesis would be: Ho:µN – PD = 0 Ho:PN – pp = 0 Ho:UN – µD = 0 Ho:PN – PD = 0 HA:PN – µD 70 HA:PN – pp > 0 HA:µn – µD 0 The test is: two-tailed right-tailed left-tailed The sample consisted of 35 night students, with a sample mean GPA of 2.98 and a standard deviation of 0.02, and 80 day students, with a sample mean GPA of 3.03 and a standard deviation of 0.06. The test statistic is: (to 3 decimals) The positive critical value is: (to 3 decimals) The p-value is: (to 3 decimals)

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:μN=μDH0:μN=μDH1:μN≠μDH1:μN≠μD H0:pN≥pDH0:pN≥pDH1:pN<pDH1:pN<pD H0:μN≤μDH0:μN≤μDH1:μN>μDH1:μN>μD H0:pN=pDH0:pN=pDH1:pN≠pDH1:pN≠pD H0:μN≥μDH0:μN≥μDH1:μN<μDH1:μN<μD H0:pN≤pDH0:pN≤pDH1:pN>pDH1:pN>pD The test is:   left-tailed two-tailed right-tailed The sample consisted of 35 night students, with a sample mean GPA of 2.23 and a standard deviation of 0.05, and 35 day students, with a sample mean GPA of 2.24 and a standard deviation of 0.07.

Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the 0.005 significance level.The null and alternative hypothesis would be:   H0:pN=pDH1:pN≠pD  H0:pN≥pD H1:pN<pD  H0:μN≥μD H1:μN<μD  H0:μN≤μD H1:μN>μD H0:pN≤pDH1:pN>pD H0:μN=μDH1:μN≠μD  The test is:   two-tailed left-tailed right-tailed The sample consisted of 70 night students, with a sample mean GPA of 2.16 and a standard deviation of 0.07, and 70 day students, with a sample mean GPA of 2.18 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: Reject the null hypothesis Fail to 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:μN=μDH0:μN=μDH1:μN≠μDH1:μN≠μD H0:μN≤μDH0:μN≤μDH1:μN>μDH1:μN>μD H0:pN=pDH0:pN=pDH1:pN≠pDH1:pN≠pD H0:pN≥pDH0:pN≥pDH1:pN<pDH1:pN<pD H0:μN≥μDH0:μN≥μDH1:μN<μDH1:μN<μD H0:pN≤pDH0:pN≤pDH1:pN>pDH1:pN>pD The test is:   left-tailed right-tailed two-tailed The sample consisted of 45 night students, with a sample mean GPA of 3.23 and a standard deviation of 0.05, and 45 day students, with a sample mean GPA of 3.26 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:

Test the claim that the mean GPA of night students is smaller than 2.2 at the 0.005 significance level.The null and alternative hypothesis would be:   H0:μ≥2.2H0:μ≥2.2H1:μ<2.2H1:μ<2.2 H0:p≤0.55H0:p≤0.55H1:p>0.55H1:p>0.55 H0:p=0.55H0:p=0.55H1:p≠0.55H1:p≠0.55 H0:μ≤2.2H0:μ≤2.2H1:μ>2.2H1:μ>2.2 H0:p≥0.55H0:p≥0.55H1:p<0.55H1:p<0.55 H0:μ=2.2H0:μ=2.2H1:μ≠2.2H1:μ≠2.2 The test is:   left-tailed two-tailed right-tailed Correct Based on a sample of 60 people, the sample mean GPA was 2.18 with a standard deviation of 0.04The p-value is: Incorrect (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 2.5 at the 0.01 significance level.The null and alternative hypothesis would be:   H0:μ=2.5H0:μ=2.5H1:μ≠2.5H1:μ≠2.5 H0:μ≤2.5H0:μ≤2.5H1:μ>2.5H1:μ>2.5 H0:p≤0.625H0:p≤0.625H1:p>0.625H1:p>0.625 H0:p=0.625H0:p=0.625H1:p≠0.625H1:p≠0.625 H0:p≥0.625H0:p≥0.625H1:p<0.625H1:p<0.625 H0:μ≥2.5H0:μ≥2.5H1:μ<2.5H1:μ<2.5 The test is:   right-tailed left-tailed two-tailed Based on a sample of 40 people, the sample mean GPA was 2.51 with a standard deviation of 0.07The 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 significantly different than 3.5 at the 0.05 significance level.The null and alternative hypothesis would be:   H0:μ≤3.5H0:μ≤3.5H1:μ>3.5H1:μ>3.5 H0:p≤0.875H0:p≤0.875H1:p>0.875H1:p>0.875 H0:μ≥3.5H0:μ≥3.5H1:μ<3.5H1:μ<3.5 H0:μ=3.5H0:μ=3.5H1:μ≠3.5H1:μ≠3.5 H0:p≥0.875H0:p≥0.875H1:p<0.875H1:p<0.875 H0:p=0.875H0:p=0.875H1:p≠0.875H1:p≠0.875 The test is:   right-tailed two-tailed left-tailed Based on a sample of 50 people, the sample mean GPA was 3.48 with a standard deviation of 0.07The 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