For each of the following situations, find the critical value(s) for z or t. a) $H_0$: p = 0.7 vs. $H_A$: p≠0.7 at $\alpha$ = 0.05 b) $H_0$: p = 0.4 vs. $H_A$: p > 0.4 at $\alpha$ = 0.05 c) $H_0$: $\mu$ = 10 vs. $H_A$: $\mu$≠10 at $\alpha$ = 0.05; n = 20 d) $H_0$: p = 0.7 vs. $H_A$: p>0.7 at $\alpha$ = 0.10; n = 335 e) $H_0$: $\mu$ = 20 vs. $H_A$: $\mu$ < 20 at $\alpha$ = 0.05; n = 1000 a) The critical value(s) is(are) (Use a comma to separate ans ed. Round to two decimal places as needed.) t* z*
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7 vs. $H_A$: p≠0.7 at $\alpha$ = 0.05 Since the alternative hypothesis is $H_A$: p≠0.7, this is a two-tailed test. Since the sample size is not given, we assume that the sample size is large enough to use the z-distribution. The significance level is $\alpha = Show more…
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