The accompanying table shows results of challenged referee calls in a major tenn

Question

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. Determine the null and alternative hypotheses. A. H_0: Male tennis players are not more successful in overturning calls than female players. H_1: Male tennis players are more successful In overturning calls than female players B. H_0: The gender of the tennis player is independent of whether a call is overturned. H_1: The gender of the tennis player is rot independent cf whether a call is overturned. C. H_0: The gender of the tennis player is rot independent cf whether a call is overturned. H_1: The gender of the tennis player is independent of whether a call is overturned. D. H_0: Male tennis players are more successful in overturning calls than female players. H_1: Male tennis players are not more successful in overturning calls than female pl

Explanation / Answer

option B is correct

X2 =150.060

p value =0.0000

reject Ho

Observed O Yes No Total men 385 532 917 women 213 985 1198 Total 598 1517 2115 Expected E=rowtotal*column total/grand total Yes No Total men 259.3 657.7 917 women 338.7 859.3 1198 Total 598 1517 2115 chi square =(O-E)^2/E Yes No Total men 60.966 24.033 84.998 women 46.666 18.396 65.061 Total 107.631 42.428 150.0595

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