Significance tests $A$ test of $H_{0}: p=0.5$ versus $H_{a}: p>0.5$ has test statistic $z=2.19$ (a) What conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level? (b) If the alternative hypothesis were $H_{a}: p \neq 0.5,$ what conclusion would you draw at the $5 \%$ significance level? At the $1 \%$ level?
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19$ to the critical value $z_{0.05}=1.645$. Since $2.19 > 1.645$, we reject the null hypothesis $H_0$ at the $5\%$ significance level. For a one-tailed test at the $1\%$ significance level, we compare the test statistic $z=2.19$ to the critical value Show more…
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