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In a statistics class, students took their pulses before and after being frightened. The frightening event was having the teacher scream and run from one side of the room to the other. The pulse rates (beats per minute) of the women before and after the scream were obtained separately and are shown in the accompanying table. Treat this as though it were a random sample of female community college students. Test the hypothesis that the mean of college women's pulse rates is higher after a fright, using a significance level of 0.05. E Click the icon to view the table of pulse rates before and after the scream. Choose a test. Should it be a paired t-test or a two-sample t-test? Why? O A. The test should be a two-sample t-test because the samples are paired. O B. The test should be a paired t-test because the samples are paired. O C. The test should be a paired t-test because the observations are independent. O D. The test should be a two-sample t-test because the observations are independent. Assume that the sample was random and that the distribution of differences is sufficiently Normal. Mention the level of significance. =(Type an integer or a decimal. Do not round.) Step 3: Compute to compare Find the test statistic for this test. t= (Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.)

In a statistics class, students took their pulses before and after being frightened. The frightening event was having the teacher scream and run from one side of the room to the other. The pulse rates (beats per minute) of the women before and after the scream were obtained separately and are shown in the accompanying table. Treat this as though it were a random sample of female community college students. Test the hypothesis that the mean of college women's pulse rates is higher after a fright, using a significance level of 0.05. E Click the icon to view the table of pulse rates before and after the scream. Choose a test. Should it be a paired t-test or a two-sample t-test? Why? O A. The test should be a two-sample t-test because the samples are paired. O B. The test should be a paired t-test because the samples are paired. O C. The test should be a paired t-test because the observations are independent. O D. The test should be a two-sample t-test because the observations are independent. Assume that the sample was random and that the distribution of differences is sufficiently Normal. Mention the level of significance. =(Type an integer or a decimal. Do not round.) Step 3: Compute to compare Find the test statistic for this test. t= (Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.)

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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i Data Table Women Pulse Before Pulse After 76 80 93 99 83 90 86 94 87 94 95 106 81 85 86 94 97 100 66 70 86 86 70 74 73 73 Print Done
Transcribed Image Text:i Data Table Women Pulse Before Pulse After 76 80 93 99 83 90 86 94 87 94 95 106 81 85 86 94 97 100 66 70 86 86 70 74 73 73 Print Done
In a statistics class, students took their pulses before and after being frightened. The frightening event was having the teacher scream and run from one side of the room to the other. The pulse rates (beats per minute) of the women before and after the scream were obtained separately and are shown in the accompanying table. Treat this as though it were a random sample of female community college students. Test the hypothesis that the mean of college women's pulse rates is higher after a fright, using a significance level of 0.05. Click the icon to view the table of pulse rates before and after the scream. Choose a test. Should it be a paired t-test or a two-sample t-test? Why? O A. The test should be a two-sample t-test because the samples are paired. O B. The test should be a paired t-test because the samples are paired. C. The test should be a paired t-test because the observations are independent. D. The test should be a two-sample t-test because the observations are independent. Assume that the sample was random and that the distribution of differences is sufficiently Normal. Mention the level of significance. (Type an integer or a decimal. Do not round.) Step 3: Compute to compare Find the test statistic for this test. t = (Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.)
Transcribed Image Text:In a statistics class, students took their pulses before and after being frightened. The frightening event was having the teacher scream and run from one side of the room to the other. The pulse rates (beats per minute) of the women before and after the scream were obtained separately and are shown in the accompanying table. Treat this as though it were a random sample of female community college students. Test the hypothesis that the mean of college women's pulse rates is higher after a fright, using a significance level of 0.05. Click the icon to view the table of pulse rates before and after the scream. Choose a test. Should it be a paired t-test or a two-sample t-test? Why? O A. The test should be a two-sample t-test because the samples are paired. O B. The test should be a paired t-test because the samples are paired. C. The test should be a paired t-test because the observations are independent. D. The test should be a two-sample t-test because the observations are independent. Assume that the sample was random and that the distribution of differences is sufficiently Normal. Mention the level of significance. (Type an integer or a decimal. Do not round.) Step 3: Compute to compare Find the test statistic for this test. t = (Round to two decimal places as needed.) Find the p-value for this test. p-value = (Round to three decimal places as needed.)
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