Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.01significance level.The null and alternative hypothesis would be:Но: р— 2.8 Но: д 2.8 Но:р > 0.7 Но:р < 0.7 Но: д > 2.8 Но:р — 0.7Нi: + 2.8 Н:n> 2.8 Ні:р < 0.7 Нi:р > 0.7 Нi:д < 2.8 Нi:р #0.7The test is:two-tailed left-tailed right-tailedBased on a sample of 60 people, the sample mean GPA was 2.84 with a standard deviation of 0.06The p-value is:(to 2 decimals)Based on this we:O Reject the null hypothesisO Fail to reject the null hypothesis

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Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.01 significance level. The null and alternative hypothesis would be: Ho : µ = 2.8 Ho: u < 2.8 Ho:p > 0.7 Ho:p < 0.7 Ho:u > 2.8 Ho:p = 0.7 H1:µ + 2.8 H1:µ > 2.8 H1:p < 0.7 H1:p > 0.7 H1:µ < 2.8 H1:p + 0.7 The test is: two-tailed left-tailed right-tailed Based on a sample of 60 people, the sample mean GPA was 2.84 with a standard deviation of 0.06 The p-value is: (to 2 decimals) Based on this we: o Reject the null hypothesis Fail to reject the null hypothesis

Test the claim that the mean GPA of night students is significantly different than 2.8 at the 0.01 significance level. The null and alternative hypothesis would be: Ho : µ = 2.8 Ho: u < 2.8 Ho:p > 0.7 Ho:p < 0.7 Ho:u > 2.8 Ho:p = 0.7 H1:µ + 2.8 H1:µ > 2.8 H1:p < 0.7 H1:p > 0.7 H1:µ < 2.8 H1:p + 0.7 The test is: two-tailed left-tailed right-tailed Based on a sample of 60 people, the sample mean GPA was 2.84 with a standard deviation of 0.06 The p-value is: (to 2 decimals) Based on this we: o Reject the null hypothesis Fail to 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 proportion of people who own cats is significantly different than 80% at the 0.1 significance level.The null and alternative hypothesis would be: H0:μ=0.8H0:μ=0.8H1:μ≠0.8H1:μ≠0.8 H0:p=0.8H0:p=0.8H1:p≠0.8H1:p≠0.8 H0:p≤0.8H0:p≤0.8H1:p>0.8H1:p>0.8 H0:p≥0.8H0:p≥0.8H1:p<0.8H1:p<0.8 H0:μ≤0.8H0:μ≤0.8H1:μ>0.8H1:μ>0.8 H0:μ≥0.8H0:μ≥0.8H1:μ<0.8H1:μ<0.8 The test is: right-tailed left-tailed two-tailed Based on a sample of 200 people, 87% owned catsThe p-value is:  (to 2 decimals)Based on this we: Reject the null hypothesis Fail to reject the null hypothesis
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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 0.10 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 proportion of men who own cats is significantly different than the proportion of women who own cats at the 0.05 significance level.The null and alternative hypothesis would be: H0:μM=μFH0:μM=μFH1:μM≠μFH1:μM≠μF H0:pM=pFH0:pM=pFH1:pM≠pFH1:pM≠pF H0:pM=pFH0:pM=pFH1:pM>pFH1:pM>pF H0:pM=pFH0:pM=pFH1:pM<pFH1:pM<pF H0:μM=μFH0:μM=μFH1:μM>μFH1:μM>μF H0:μM=μFH0:μM=μFH1:μM<μFH1:μM<μF The test is: right-tailed two-tailed left-tailed Based on a sample of 40 men, 40% owned catsBased on a sample of 40 women, 60% owned catsThe 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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Test the claim that the mean GPA of night students is significantly different than 2.2 at the 0.01 significance level. The null and alternative hypothesis would be: Ho: p = 0.55 H₁: p > 0.55 Ho : μ = 2.2 H₁ : µ 2.2 Ho:|=2.2 H₁: μ2.2 O Ho: p = 0.55 H₁: p0.55 O Ho: p = 0.55 H₁: p < 0.55 Based on a sample of 80 people, the sample mean GPA was 2.22 with a standard deviation of 0.06 The test statistic is decimals) The positive critical value is Based on this we (to 3 decimals) reject the null hypothesis fail to reject the null hypothesis (to 3
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