Question

A researcher 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 0.02 with 90​% confidence if ​a) she uses a previous estimate of 0.34​? ​b) she does not use any prior​ estimates? ​a) nequals nothing ​(Round up to the nearest​ integer.) ​b) nequals nothing ​(Round up to the nearest​ integer.)

Answer 1