question archive Question 1 A researcher wishes to estimate the percentage of adults who support abolishing the penny
Question 1 A researcher wishes to estimate the percentage of adults who support abolishing the penny
Subject:MathPrice: Bought3
Question 1
A researcher wishes to estimate the percentage of adults who support abolishing the penny. What size sample should be obtained if he wishes the estimate to be within 3 percentage points with 95?% confidence if?
(a) he uses a previous estimate of 22?%?
?(b) he does not use any prior? estimates?
