How to solve it?

Question two A random sample of size n from an exponential population is used to test the null hypothesis 0 = 60 against the alternative hypothesis 0 = 01 > 60. Use the Newman-Pearson lemma to find the most powerful critical region of size o. Question three Use the Neyman-Pearson lemma to show how to construct the most powerful critical region of sizea to test the null hypothesis 0 = 60, where o is the parameter of a binomial distribution with a given value of n, against the alternative hypothesis 0 = 01