A physical therapist wanted to know whether the mean step pulse of men was less than the mean step pulse of women. She randomly selected 60 Two sample T for Men vs Women men and 78 women to participate in the study. Each subject was required to step up and down a 6-inch platform. The pulse of each subject was then N Mear StDev SE Mean recorded. The following results were obtained. Men 60 112.2 11.5 1.5 Women 78 118.2 14.3 1.6 99% CI for mu Men - mu Women ( - 11.80, - 0.20) T-Test mu Men = mu Women (vs H2 OC. Ho: Hy = H2; Ha: My # H2 (b) Identify the P-value and state the researcher's conclusion if the level of significance was a = 0.01. What is the P-value? P-value = State the researcher's conclusion. Which of the following is correct? O A. Fail to reject Ho, there is not sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women O B. Fail to reject Ho, there is sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women O C. Reject Ho, there is sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women O D. Reject Ho, there is not sufficient evidence to conclude that the mean step pulse of men was less than the mean step pulse of women (c) What is the 99% confidence interval for the mean difference in pulse rates of men versus women? The lower bound is The upper bound is (Round to two decimal places as needed.) Interpret this result. O A. 99% percent of the time the means are in the confidence interval. O B. We are 99% confident that the means are in the confidence interval. O C. We are 99% confident that the mean difference is in the confidence interval.O D. 99% percent of the time the mean difference is in the confidence interval