Question

The test statistic of z equals= -2.04 is obtained when testing the claim that p equals =1/2.

a. Using a significance level α=0.01 find the critical​ value(s).

b. Should we reject Upper H 0 or should we fail to reject Upper H 0​?

Answer 1

hypothesis:-

[ as nothing is mentioned i am using both tailed test]

test statistic be:-

a). z critical values for alpha=0.01, both atiled test be:-

, i.e, 2.576 and -2.576

b).decision rule:-

reject the null hypothesis, if,

decision:

so, we fail to reject the null hypothesis.

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