If a manager believes that the required sample size is too large for a situation in which she desires to estimate the mean income of blue collar workers in a state,which of the following would lead to a reduction in sample size?
A)Reduce the level of confidence
B)Allow a higher margin of error
C)Somehow reduce the variation in the population
D)All of the above

Question

Quizplus · Accepted Answer

Reducing the level of confidence, allowing a higher margin of error, and reducing population variation all lead to a smaller required sample size.

If a Manager Believes That the Required Sample Size Is