A random sample of 200 adults is classified below according

A random sample of 200 adults is classified below according to gender and attained education level. Find the difference of proportions of having college education between Males and Females; Find the parameters of the Normal approximation to the difference of proportions from a) assuming that gender and education level are independent; Find the odds for a randomly chosen adult Male to have college education; Find the odds ratio between Males and Females to have college education; Find the expected number of Males with college education in the exact Fisher test;

Solution

a)

male = 20/90 = 0.22

female = 10/110 =0.09

difference proportion = 0.22 - 0.09 = 0.13

b)

parameters of normal distribution

miu = 200*0.13 = 26

standard deviation = srqt ( 26*(1-0.13)) = 4.756

c)

OR = [20 / 30] = 0.67

d)

ODDS RATIO = 70*10 / 100*20 = 0.35

e) I can gladly help you but you should post it in a new question