A population has a proportion equal to 030 Calculate the fol

A population has a proportion equal to 0.30. Calculate the following probabilities with n = 100. Find P( ? 0.35).

Solution

A population has a proportion equal to 0.30. Calculate the following probabilities with n = 100. Find P( ? 0.35).

sd of proportion = ?(pq/n) = ?(0.3*0.7/100) = 0.0458
z-score = (0.35-0.30)/0.0458 = 1.09
P( p>0.35) = P(z>1.09) = 0.1379