Aresearcher wishes to estimate the proportion of adults who have high-speed internet access. what size sample should be obtained if she wishes the estimate to be within 0.01 with 95% confidence if she uses a previous estimate of 0.32?

8359

Step-by-step explanation:

The formula for sample size needed for interval estimate of population proportion :-

Given : The significance level :

Critical value :

Previous estimate of proportion :

Margin of error :

Now, the required sample size will be :-

Hence, the required sample size = 8359

(x) - (y) = (1 + 4i)