Significance tests A test of H0 : p = 0.65 against Ha : p < 0.65 has
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Significance tests A test of H0 : p = 0.65 against Ha : p < 0.65 has test statistic z = –1.78.
(a) What conclusion would you draw at the 5% significance level? At the 1% level?
(b) If the alternative hypothesis were Ha : p ≠ 0.65, what conclusion would you draw at the 5% significance level? At the 1% level?
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