A simple random sample of 38 men from a normally distributed population result in a standard deviation of 10.2 beats per minute. The normal range of pulse rates of adults is typically given as 60 to 100 beats per minute. If the range rule of thumb is applied to that normal range, the result is a standard deviation of 10 beats per minute. Use the sample results with a 0.10

significance level to test the claim that pulse rates of men have a standard deviation equal to 10 beats per minute. Complete parts (a) through (d) below.

A. Compute the test statistic. Purposes use Formula

B. Identify the P-Value

D. Compare the P-value to the level of significance to determine the result of the hypothesis test. If the P-value is less than or equal to the level of significance there is sufficient evidence to reject the null hypothesis. Otherwise, there is insufficient evidence to reject the null hypothesis. Restate the conclusion in terms of the original claim.