Arandom sample of 14 college women and a random sample of 19 college men were separately asked to estimate how much they spent on clothing in the last mon The accompanying table shows the data. Suppose the null hypothesis that the mean amount spent by men and the mean amount spent by women for clothing are t same could not be rejected using two-tailed test at a significance level of 0.05. Complete parts a through c below. Click the icon to view the data table. a. If a 95% confidence interval for the difference between means is found, would it capture 0? Explain. O A. The 95% interval would not capture 0, because the hypothesis that the mean amounts spent on clothing are the same could not be rejected by the hypothesis test. O B. The 95% interval would capture 0, because there does not appear to be a difference between the mean amounts spent on clothing from looking at the data. O C. The 95% interval would capture 0, because the hypothesis that the mean amounts spent on clothing are the same could not be rejected by the hypothesis test. O D. The 95% interval would not capture 0, because there appears to be a difference between the mean amounts spent on clothing from looking at the data. b. If a 99% confidence interval for the difference between means is found, would it capture 0? Explain. O A. Yes, because a 99% interval is wider than a 95% interval and centered at the same value, and based on the results of the hypothesis test, a 95% interval
Arandom sample of 14 college women and a random sample of 19 college men were separately asked to estimate how much they spent on clothing in the last mon The accompanying table shows the data. Suppose the null hypothesis that the mean amount spent by men and the mean amount spent by women for clothing are t same could not be rejected using two-tailed test at a significance level of 0.05. Complete parts a through c below. Click the icon to view the data table. a. If a 95% confidence interval for the difference between means is found, would it capture 0? Explain. O A. The 95% interval would not capture 0, because the hypothesis that the mean amounts spent on clothing are the same could not be rejected by the hypothesis test. O B. The 95% interval would capture 0, because there does not appear to be a difference between the mean amounts spent on clothing from looking at the data. O C. The 95% interval would capture 0, because the hypothesis that the mean amounts spent on clothing are the same could not be rejected by the hypothesis test. O D. The 95% interval would not capture 0, because there appears to be a difference between the mean amounts spent on clothing from looking at the data. b. If a 99% confidence interval for the difference between means is found, would it capture 0? Explain. O A. Yes, because a 99% interval is wider than a 95% interval and centered at the same value, and based on the results of the hypothesis test, a 95% interval
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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