If you use a 0.05 level of significance in a (two-tail) hypothesis test, what wi

Question

If you use a 0.05 level of significance in a (two-tail) hypothesis test, what will you decide if ZSTAT= +2.15. ick lick view page 1 of the cumulative standardized normal distribution table. iew the cumulat andardized nomal distribution table Determine the decision rule. Select the correct choice below and fill in the answer box(es) within your choice (Round to three decimal places as needed.) O A. Reject HZSTATor ZSTAT O B. Reject Ho if ZSTAT O C. Reject Ho if ZSTAT OD. Reject Ho ZSTAT State your conclusion. Choose the correct answer below O A. Since ZSAT falls into the rejection region, do not reject Ho B. ° C. 0 D. Since ZSAT falls into the nonrejection region, do not reject Ho Since ZSTAT falls into the rejection region, reject Ho Since ZSTAT falls into the nonrejection region, reject Ho

Explanation / Answer

Ans

1st question -

note that we have 0.05 level of significance in two tailed hypothesis then Tabulated value of Z=1.96

and if calculated z statistics is =2.15, then we reject the null hypothesis if Z stat <(-1.96) or z stat >1.96, and here we see that z stat(2.15)>1.96

so option (A) is correct,

Ans questions 2

option (C) is correct

since z stat falls in rejection region so we reject the null hypothesis

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