The required sample size to estimate the mean for an a particular study resulted
ID: 3153783 • Letter: T
Question
The required sample size to estimate the mean for an a particular study resulted into significantly large sample size. The analyst believes that he does not have the time or the resources to collect such a large sample. Which of the following actions would lead to a reduced sample size?
(a) the margin of error required in the actual study should be increased.
(b) the confidence level should be reduces.
(c) the variation in the population should be reduced.
(d) all of the above will lead to a reduced sample size.
Explanation / Answer
[ANSWER]
(d) all of the above will lead to a reduced sample size.
Compute Sample Size
n = (Z a/2 * S.D / ME ) ^2
Increasing the M.E, redcuing the C.I decreases the sample size.