Question: Refer to the attachment below A study shows that running increases the percent resting metabolic rate (RMR) in older women. The average RMR of 35
Refer to the attachment below


A study shows that running increases the percent resting metabolic rate (RMR) in older women. The average RMR of 35 elderly women runners was 34.4% higher than the average RMR of 35 sedentary elderly women, and the standard deviations were reported to be 10.5% and 10.2%, respectively. Was there a signicance increase in RMR of the women runners over the sedentary women? Assume the populations to be approximately normally distributed with equal variances. Use a Pvalue in the conclusion. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view p_age 2 of the table of critical values of the t-distribution. Let sample 1 be the women runners and let sample 2 be the sedentary women. State the null and alternative hypotheses. Ho: '11- p2 V _| \"1 = P1 - P2 l :I Determine the test statistic. no (Round to two decimal places as needed.) Determine the range into which the P-value falls. : State the proper conclusion. V H0. There l evidence to conclude that there E] a signicance increase in RMR of the women runners over the sedentary women. A manufacturer claims that the average tensile strength of thread A exceeds the average tensile strength of thread B by at least 13 kilograms. To test this claim, 51 pieces of each type of thread were tested under similar conditions. Type A thread had an average tensile strength of 81.9 kilograms with a standard deviation of 6.68 kilograms, while type B thread had an average tensile strength of 72.5 kilograms with a standard deviation of 6.57 kilograms. Test the manufacturer's claim using a 0.05 level of significance. Do not assume that the population variances are equal. Click here to view page 1 of the table of critical values of the t-distribution. Click here to view page 2 of the table of critical values of the t-distribution. Let type A thread correspond to population 1 and let type B thread correspond to population 2. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: H1 - H2 13 H1: H1 - H2 > 13 Hy: Hy - H2 # 13 H1: H1 - H2 = 13 Identify the critical region. Select the correct choice below and fill in the answer box(es) to complete your choice. (Round to two decimal places as needed.) O A. t's OB. t'> O c. t's or t' > Find the test statistic. (Round to two decimal places as needed.)
Step by Step Solution
There are 3 Steps involved in it
Get step-by-step solutions from verified subject matter experts
