Question

Since an instant replay system for tennis was introduced at a major​ tournament, men challenged

1409 referee​ calls, with the result that 429 of the calls were overturned. Women challenged 763 referee​ calls, and

213 of the calls were overturned. Use a 0.05 significance level to test the claim that men and women have equal success in challenging calls. Complete parts​ (a) through​ (c) below.

a. what are the null and alternative hyphotesis?

b. what is the test statistic? (two decimal)

c. what is the p-value (three decimal)

d. What is the conclusion based on the hypothesis test?

e. test a claim by constructing an appropriate confidence interval (95%)

f. what is the conclusion based on the confidence interval?

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

A.)The confidence interval suggests that there is no significant difference between the success of men and women in challenging calls.

B.) The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that men have more success.

C.)The confidence interval suggests that there is a significant difference between the success of men and women in challenging calls. It is reasonable to speculate that women have more success.

D.)There is not enough information to reach a conclusion.

Answer 1

The confidence interval suggests that there is no significant difference between the success of men and women in challenging calls.