Kizspy | Question: 54
(Choose 1 answer)
(See picture)
Α. 9220
Β. 6456
C. 97
D. 81
FUOVERFLOW
If you want to be 95% confident of estimating the population proportion to within a sampling error of ±0.01 and there is historical evidence that the population proportion is approximately 0.40, what sample size is needed?
Let Z0.025 1.96 and 20.05 =1.64.
