Ember

Mathematics

20 July, 19:12

A college president says, "More than two-thirds of the alumni support my firing of Coach Boggs." The president's statement is based on 200 emails he has received from alumni in the past three months. The college's athletic director wants to perform a test of H0: p = ⅔ versus Ha: p > ⅔, where p = the true proportion of the college's alumni who favor firing the coach. Check if the conditions for performing the significance test are met. Random? No, volunteer response sample

A. Random? No, volunteer response sample Large Counts? Yes

B. Random? Yes Large Counts? fails

C. Both fails

D. Random? Random sample of 100 students Large Counts? np0 = 100 (0.13) = 13 ≥ 10 and n (1-p0) = 100 (0.87) = 87 ≥ 10