n a study of 100 new cars 29 are white Find phat and qhat w

n a study of 100 new cars, 29 are white. Find phat and qhat , where phat is the proportion of new cars that are white.

A) phat = 0.29, qhat = 0.20

B) phat = 0.29, qhat = 0.71

C) phat = 0.71, qhat = 0.29

D) phat = 0.71, qhat = 0.71

Solution

Here,

x= 29 white cars
n = 100 cars

thus,

phat = x/n = 0.29

Also,

qhat = 1 - phat = 1 - 0.29 = 0.71

Thus,

B) phat = 0.29, qhat = 0.71 [ANSWER, B]