I would like to know if completed the following question co

I would like to know if completed the following question correctly?Based on theinformation given for the following studies, decide whether to reject thenull hypothesis. Assume that all populations are normally distributed. Foreach, give: a.  TheZ-score cutoff (or cutoffs) on thecomparison distribution at which the null hypothesis should be rejected.b.  TheZ-score on the comparisondistribution for the sample score.c.  Yourconclusion.StudyµσSampleScorepTails of TestsA5170.051 (high predicted)B5170.052C5170.011 (High predicted)D5170.012Answer:StudyµσSampleScorepTails of Testsz-score cut off at p-levelz-score for sample score =(Samplescore-µ)/σConclusion A5170.051 (high predicted)1.645(7-5)/1=2Do not rejectB5170.0521.96(7-5)/1=2Do not rejectC5170.011 (High predicted)2.326(7-5)/1=2RejectD5170.0122.575(7-5)/1=2Reject