Question

Since an instant replay system for tennis was introduced at a major​ tournament, men challenged 1416 referee​ calls, with the result that 411 of the calls were overturned. Women challenged 746 referee​ calls, and 221 of the calls were overturned. Use a 0.01 significance level to test the claim that men and women have equal success in challenging calls

a. Test the claim using a hypothesis test. z value, p-value

b. Test the claim by constructing an appropriate confidence interval.

c. Based on the​ results, does it appear that men and women may have equal success in challenging​ calls?

Answer 1