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 andafter 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 ishigher 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.Step 1: HypothesizeLet Hpefore be the population mean number of beats per minute before the scream, and let uafter be the population mean number of beats per minute after the scream. Determine the hypotheses for this test. Use Hdifference = Hpefore - HafterChoose the correct answer below.O A. Ho: Hdifference>0O B. Ho: Hdifference *01 Data TableHa: Hdifference =0Ha: Pdifference = 0O C. Ho: Hdifference =0O D. Ho: Hdifference = 0WomenHa: Hdifference <0Hai Hdifference >0O E. Ho: Hdifference =0O F. Ho: Hdifference <0Pulse BeforePulse After7580Ha: Hdifference #0Ha: Pdifference =087958794Step 2: Prepare80817577Choose a test. Should it be a paired t-test or a two-sample t-test? Why?92988894O A. The test should be a two-sample t-test because the samples are paired.77888186O B. The test should be a paired t-test because the samples are paired.8790O C. The test should be a two-sample t-test because the observations are independent.64666873O D. The test should be a paired t-test because the observations are independent.7786Assume that the sample was random and that the distribution of differences is sufficiently Normal. Mention the level of significance.PrintDone(Type an integer or a decimal. Do not round.) 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 andafter 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 ishigher 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.OC. The test should be a two-sample t-test because the observations are independent.O D. The test should be a paired 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.g = (Type an integer or a decimal. Do not round.)Step 3: Compute to compareFind 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.)Step 4: InterpretReject or do not reject Ho. Then write a sentence that includes "significant" or "significantly" in it. Report the sample mean pulse rate before the scream and the sample mean pulse rate after the scream.V Ho. The sample mean before the scream wasbeats per minute and the sample mean after wasbeats per minute. College women's pulse ratesV significantly higher after a fright.(Round to one decimal place as needed.)

Name: In a statistics class, students took their pulses before and after be
Uploaded: 2024-03-20T07:07:12.000Z
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Description: 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 andafter