(a) Set up the null and alternative hypotheses for deciding whether more than half of American Catholics favor allowing women to be priests. H0: p        0.5 Ha: p        0.5 (b) What conditions are necessary for using a z-statistic to test the hypotheses in part (a)? (Select all that apply.) The sample must be randomly selected.The sample size must not be too big.np0 and n(1 − p0) must be greater than 10.The sample size must be large enough.There are no requirements.np0 and n(1 − p0) must be less than 10.

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