Question

A sample with a sample proportion of 0.5 and which of the following sizes

will produce the widest 95% confidence interval when estimating the
population parameter?
A. 60
B. 70
C. 50
D. 40

Answer 1

The answer is C.50. That is the answer.

Answer 2

Option C. 50

Explanation:

Data:

Let the sample have the proportion = 0.5

The population level confidence = 95 %

The sample size that will produce the greatest confidence will be the size that has the greatest statistical significance.

Therefore, the correct option will be 50.