Suppose you want to estimate the proportion of traditional college students on your campus who own their own car. from research on other college campuses, you believe the proportion will be near 3030%. what sample size is needed if you wish to be % confident that your estimate is within 0.020.02 of the true proportion?

3484

Step-by-step explanation:

The following formula is used to compute the minimum sample size required to estimate the population proportion  within the required margin of error:

n≥ p×(1-p) × where

we have p=0.30 (30%) z=2.58 ME= 0.02 then we get

n≥ 0.3×(1-0.3) × = 3483.32

therefore we need at least 3484 students under these conditions.

66.666666667%

step-by-step explanation:

divide 150 by 100

divide 100 by 1.5

there you go!

decreased by 33.333333334%