1. The National Collegiate Athletic Association (NCAA) measures the Graduation Success Rate (GSR), which is the percentage of eligible athletes who graduate within six years of entering college. According to the NCAA, the GSR for all scholarship athletes in a particular division is 61%. The GSR for all students in this division is 57%. Complete parts a and b. a. Suppose the NCAA report was based on a sample of 500 student-athletes, of which 305 graduated within six years. Is this sufficient information to conclude that the GSR for all scholarship athletes in this division differs from 57%? Test using a = 0.01. What are the hypotheses for this test? A. Ho p=0.57; H: p > 0.57 C. Ho: p = 0.57; H: p# 0.57 Find the rejection region for the test. Choose the correct answer below. OA. Z < -2.33 OC. z>2.33 OE. Z < -2.33 or z > 2.33 Calculate the value of the test statistic. z= (Round to two decimal places as needed.) Make the appropriate conclusion. Choose the correct answer below. A. Do not reject Ho. There is insufficient evidence at the a = 0.01 level of significance to conclude that the true GSR for all scholarship athletes in this division differs from 57%. B. Reject Ho. There is insufficient evidence at the = 0.01 level of significance to conclude that the true GSR for all scholarship athletes in this division differs from 57%. OB. Ho: p# 0.57; H: p = 0.57 D. Ho: p = 0.57; H: p < 0.57 B. z 2.575 OD. Z>2.575 OF. Z