A statistics practitioner wants to test the following hypothesis with st dev=20 and n=100 ...

A statistics practitioner wants to test the following hypothesis with st dev=20 and n=100: H0: =100 H1: >100 a. Using alpha= .10 find the probability of a Type II error when u= 102. b. Repeat part (a) with alpha =.02. c. Describe the effect on Beta of decreasing alpha