Statistic and Probability

Pleaseexplain in detail, and I don't want answers copied from otherWEBSITES ANSWERS. Thanks!

Suppose you have a random sample of size 111] from Nut. 1}. (a) The critical region for testing H0 : p, = 1 \"us. H1 : y; :1:- 1 is given to be {it 12- 2}. Find the size of the test, i.e., the probability of type I error. (b) Find the UMPT of size a for Hg : n = 5 \"us. H1 : gt