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The accompanying table shows the technology output for a two-sample t-test for the number of TVs owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others; the students were not chosen as pairs or in groups. One of the schools is in a wealthy community (MC), and the other (OC) is in a less wealthy community. Complete the steps to test the hypothesis that the mean number of TVs p household is different in the two communities, using a significance level of 0.05. O Click the icon to view the technology output. Step 1: Hypothesize Let Hoc be the population mean number of televisions owned by families of students in the less wealthy community (OC), and let pme be the population mean number of televisions owned by families of students in the wealthy community (MC). Choose the correct hypotheses below. OA Ho: Hoc = Hmc O B. Ho: Hoc= Hmc H: Học Pmc H: Poc> Hmc OC. Ho: Hoc= Pmc OD. Ho: Hoc= Hmc O Technology Output H: Học= - Pmc H: Học Pmc Step 2: Prepare Choose an appropriate t-test. Select the correct answer below. N Mean StDev SE Mean OCTV MCTV 30 3.70 1.49 0.27 O A. A one-sample t-test should be used. O B. A two-sample t-test (from independent samples) should be used. OC. A two-sample t-test (from dependent samples) should be used. 30 3.20 1.47 0.27 Difference = u(OCTV) - µ(MCTV) Estimate for difference: 0.500 95% CI for difference: (-0.265,1.265) T-Test of difference = 0 (vs not =): T-Value = 1.31 P-value = 0.196 O D. There is no appropriate t-test for this situation. Because the sample sizes are 30, the Normality condition of the t-test is satisfied. State the other conditions and indicate whether they hold. The Random Samples and Independent Observations condition Print Done The Large Population condition The Independent Samples condition

The accompanying table shows the technology output for a two-sample t-test for the number of TVs owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others; the students were not chosen as pairs or in groups. One of the schools is in a wealthy community (MC), and the other (OC) is in a less wealthy community. Complete the steps to test the hypothesis that the mean number of TVs p household is different in the two communities, using a significance level of 0.05. O Click the icon to view the technology output. Step 1: Hypothesize Let Hoc be the population mean number of televisions owned by families of students in the less wealthy community (OC), and let pme be the population mean number of televisions owned by families of students in the wealthy community (MC). Choose the correct hypotheses below. OA Ho: Hoc = Hmc O B. Ho: Hoc= Hmc H: Học Pmc H: Poc> Hmc OC. Ho: Hoc= Pmc OD. Ho: Hoc= Hmc O Technology Output H: Học= - Pmc H: Học Pmc Step 2: Prepare Choose an appropriate t-test. Select the correct answer below. N Mean StDev SE Mean OCTV MCTV 30 3.70 1.49 0.27 O A. A one-sample t-test should be used. O B. A two-sample t-test (from independent samples) should be used. OC. A two-sample t-test (from dependent samples) should be used. 30 3.20 1.47 0.27 Difference = u(OCTV) - µ(MCTV) Estimate for difference: 0.500 95% CI for difference: (-0.265,1.265) T-Test of difference = 0 (vs not =): T-Value = 1.31 P-value = 0.196 O D. There is no appropriate t-test for this situation. Because the sample sizes are 30, the Normality condition of the t-test is satisfied. State the other conditions and indicate whether they hold. The Random Samples and Independent Observations condition Print Done The Large Population condition The Independent Samples condition

MATLAB: An Introduction with Applications
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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The accompanying table shows the technology output for a two-sample t-test for the number of TVs owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others; the students were not chosen as pairs or in groups. One of the schools is in wealthy community (MC), and the other (OC) is in a less wealthy community. Complete the steps to test the hypothesis that the mean number of TVs pe household is different in the two communities, using a significance level of 0.05. Click the icon to view the technology output. Step 1: Hypothesize Let uoc be the population mean number of televisions owned by families of students in the less wealthy community (OC), and let ume be the population mean number of televisions owned by families of students in the wealthy community (MC). Choose the correct hypotheses below. O A. Ho: Hoc = Pmc O B. Ho: Hoc =Pmc Ha: Học > Hmc Ha: Học Pmc O C. Ho: Hoc = Hmc Ha: Học = - mc O D. Ho: Hoc Pmc Technology Output Ha: Học <Pmc Step 2: Prepare Choose an appropriate t-test. Select the correct answer below. Mean StDev SE Mean OCTV MCTV 30 3.70 1.49 0.27 O A. A one-sample t-test should be used. 30 3.20 1.47 0.27 O B. A two-sample t-test (from independent samples) should be used. OC. A two-sample t-test (from dependent samples) should be used. Difference - μ(OCTV)- μ(MCTV) Estimate for difference: 0,500 95% Cl for difference: (-0.265,1.265) T-Test of difference = 0 (vs not = ): T-Value = 1.31 P-value = 0.196 O D. There is no appropriate t-test for this situation. Because the sample sizes are 30, the Normality condition of the t-test is satisfied. State the other conditions and indicate whether they hold. The Random Samples and Independent Observations condition Print Done The Large Population condition The Independent Samples condition
Transcribed Image Text:The accompanying table shows the technology output for a two-sample t-test for the number of TVs owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others; the students were not chosen as pairs or in groups. One of the schools is in wealthy community (MC), and the other (OC) is in a less wealthy community. Complete the steps to test the hypothesis that the mean number of TVs pe household is different in the two communities, using a significance level of 0.05. Click the icon to view the technology output. Step 1: Hypothesize Let uoc be the population mean number of televisions owned by families of students in the less wealthy community (OC), and let ume be the population mean number of televisions owned by families of students in the wealthy community (MC). Choose the correct hypotheses below. O A. Ho: Hoc = Pmc O B. Ho: Hoc =Pmc Ha: Học > Hmc Ha: Học Pmc O C. Ho: Hoc = Hmc Ha: Học = - mc O D. Ho: Hoc Pmc Technology Output Ha: Học <Pmc Step 2: Prepare Choose an appropriate t-test. Select the correct answer below. Mean StDev SE Mean OCTV MCTV 30 3.70 1.49 0.27 O A. A one-sample t-test should be used. 30 3.20 1.47 0.27 O B. A two-sample t-test (from independent samples) should be used. OC. A two-sample t-test (from dependent samples) should be used. Difference - μ(OCTV)- μ(MCTV) Estimate for difference: 0,500 95% Cl for difference: (-0.265,1.265) T-Test of difference = 0 (vs not = ): T-Value = 1.31 P-value = 0.196 O D. There is no appropriate t-test for this situation. Because the sample sizes are 30, the Normality condition of the t-test is satisfied. State the other conditions and indicate whether they hold. The Random Samples and Independent Observations condition Print Done The Large Population condition The Independent Samples condition
The accompanying table shows the technology output for a two-sample t-test for the number of TVs owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others; the students were not chosen as pairs or in groups. One of the schools is in a wealthy community (MC), and the other (OC) is in a less wealthy community. Complete the steps to test the hypothesis that the mean number of TVs per household is different in the two communities, using a significance level of 0.05. A Click the icon to view the technology output. The significance level that will be used is a = (Type an integer or a decimal. Do not round.) Step 3: Compute to compare Find the test statistic for this test. t= (Type an integer or a decimal. Do not round.) Find the p-value for this test. p-value = (Type an integer or a decimal. Do not round.) Step 4: Interpret Reject or do not reject the null hypothesis. Then choose the correct interpretation. V Họ. At the 5% significance level, there is V evidence to conclude that the mean number of TVs of all students in the wealthier community is different from the mean number of TVs of all students in the less wealthy community. Confidence Interval Report the confidence interval for the difference in means given by technology. (Type integers or decimals. Do not round.) State whether the confidence interval captures 0 and what this shows. The interval for the difference V 0. This implies that it plausible that
Transcribed Image Text:The accompanying table shows the technology output for a two-sample t-test for the number of TVs owned in households of random samples of students at two different community colleges. Each individual was randomly chosen independently of the others; the students were not chosen as pairs or in groups. One of the schools is in a wealthy community (MC), and the other (OC) is in a less wealthy community. Complete the steps to test the hypothesis that the mean number of TVs per household is different in the two communities, using a significance level of 0.05. A Click the icon to view the technology output. The significance level that will be used is a = (Type an integer or a decimal. Do not round.) Step 3: Compute to compare Find the test statistic for this test. t= (Type an integer or a decimal. Do not round.) Find the p-value for this test. p-value = (Type an integer or a decimal. Do not round.) Step 4: Interpret Reject or do not reject the null hypothesis. Then choose the correct interpretation. V Họ. At the 5% significance level, there is V evidence to conclude that the mean number of TVs of all students in the wealthier community is different from the mean number of TVs of all students in the less wealthy community. Confidence Interval Report the confidence interval for the difference in means given by technology. (Type integers or decimals. Do not round.) State whether the confidence interval captures 0 and what this shows. The interval for the difference V 0. This implies that it plausible that
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