According to a population census in 1986, the percentage of maleswho are 18 or 19 years old that are married was 3.7%. We shall testwhether this percentage increased from 1986 to 1988. a) Define the null and alternative hypotheses. b) Define a critical region that has an approximatesignificance level of a = 0.01. c) If y = 20 out of a random sample of n =300 males, each 18 or 19 years old were married, what is yourconclusion? (1988)