I need the work

4. Based on the information given for each of the following studies, decide whether to reject the null hypothesis. Provide the following for each: (Assume that all populations are normally distributed.) 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 c. Your conclusion Population Study M SD Sample Score P Tails of Test A 6 0.8 8 05 1 (high predicted) B 6 0.8 8 05 2 C 6 0.8 8 .01 1 (high predicted) D 6 0.8 8 01 2