Author Question: When determining the sample size for a proportion for a given level of confidence and sampling ... (Read 47 times)

awywial · **on:** Jun 24, 2018

When determining the sample size for a proportion for a given level of confidence and sampling error, the closer to 0.50 that is estimated to be, the sample size required

A) is smaller. B) is not affected.
C) is larger. D) can be smaller, larger or unaffected.

Question 2

The width of a confidence interval estimate for a proportion will be

A) wider for a sample size of 100 than for a sample size of 50.
B) narrower for 99 confidence than for 95 confidence.
C) narrower for 90 confidence than for 95 confidence.
D) narrower when the sample proportion is 0.50 than when the sample proportion is 0.20.