For each of the following situations, find the critical value(s) for z or t. a) Ho: p=0.4 vs. HA: p *0.4 at a = 0.05 b) Ho: p=0.6 vs. HA: P>0.6 at α=0.01 c) Ho: H = 20 vs. HA: H#20 at α=0.01; n=28 d) Ho: p=0.4 vs. HA: P>0.4 at x =0.05; n = 345 e) Ho: H=30 vs. HA: <30 at x = 0.01; n = 1000 a) The critical value(s) is(are) (Use a comma to separate an: t" Z* *** led. Round to two decimal places as needed.)

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