posted by Anonymous .
15. Based on the information given for each of the following studies, decide
whether to reject the null hypothesis. For each, give (a) the Z-score cutoff (or cutoffs) on the comparison distribution at which the null hypothesis should be rejected, (b) the Z score on the comparison distribution for the sample score, and(c) your conclusion. Assume that all populations are normally distributed.
We do not have access to your studies.