Assume a significance level of a= 0.05 and use the given information to complete parts (a) and (b) below. Original claim: The standard deviation of pulse rates of a certain group of adult males is...

Extracted text: Assume a significance level of a= 0.05 and use the given information to complete parts (a) and (b) below. Original claim: The standard deviation of pulse rates of a certain group of adult males is more than 12 bpm. The hypothesis test results in a P-value of 0.3561. a. State a conclusion about the null hypothesis. (Reject H, or fail to reject Ho.) Choose the correct answer below. O A. Fail to reject H, because the P-value is less than or equal to a. O B. Reject H, because the P-value is less than or equal to a. C. Fail to reject H because the P-value is greater than a. O D. Reject H, because the P-value is greater than a. b. Without using technical terms, state a final conclusion that addresses the original claim. Which of the following is the correct conclusion? O A. There is sufficient evidence to support the claim that the standard deviation of pulse rates of the group of adult males is more than 12 bpm. O B. The standard deviation of pulse rates of the group of adult males is more than 12 bpm. O C. The standard deviation of pulse rates of the group of adult males is less than or equal to 12 bpm. O D. There is not sufficient evidence to support the claim that the standard deviation of pulse rates of the group of adult males is more than 12 bpm.