Homework SourseHow large a sample should be surveyed to estimate the true p
How large a sample should be surveyed to estimate the true proportion of college students who do laundry once a week within 3% with 95% confidence?
Solution
N=Z2 p q / E2
To determine N, the sample size
use
p= .5
q=.5
E=.05
Z=Z score, for example 2.33
To determine N, the sample size
use
p= .5
q=.5
E=.05
Z=Z score, for example 2.33
