(10
(Choose 1 answer)
(See picture)
A. 369
B. 17
C. 259
D. 20
If you want to be 95% confident of estimating the population proportion to within a sampling error of +0.05 and there is historical evidence that the population proportion is approximately 0.60, what sample size is needed?
Let Z0.025 1.96 and Z0.05 =1.64.
