Which sample proportion will require the largest number of work sampling observations for a given confidence level and allowable error?
A) .05
B) .25
C) .50
D) .75
E) .95

Question

Which sample proportion will require the largest number of work sampling observations for a given confidence level and allowable error?
A) .05
B) .25
C) .50
D) .75
E) .95

Quizplus · Accepted Answer

The sample proportion of 0.50 requires the largest number of observations because it maximizes the product p(1-p), which is used in the formula for determining sample size in work sampling. This results in the largest variance and thus requires the largest sample size to achieve a given confidence level and allowable error.

Which Sample Proportion Will Require the Largest Number of Work