The accompanying table shows results of challenged referee calls in a major tennis tournament. Use a 0.05 significance level to test the claim that the gender of the tennis player is independent of whether a call is overturned.

_ Successful_Challenge Unsuccessful_Challenge Men 475 570 Women 402 701

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Part 1

Determine the null and alternative hypotheses.

A.

H0:

The gender of the tennis player is not independent of whether a call is overturned.

H1:

The gender of the tennis player is independent of whether a call is overturned.

B.

H0:

Male tennis players are more successful in overturning calls than female players.

H1:

Male tennis players are not more successful in overturning calls than female players.

C.

H0:

The gender of the tennis player is independent of whether a call is overturned.

H1:

The gender of the tennis player is not independent of whether a call is overturned.

D.

H0:

Male tennis players are not more successful in overturning calls than female players.

H1:

Male tennis players are more successful in overturning calls than female players.