If the standard error of the population is reduced by 50 per cent, the sample size becomes
A)Double
B)Increase 6 times
C)Increase 4 times
D)None of the above

Question

Quizplus · Accepted Answer

The standard error is inversely proportional to the square root of the sample size. Reducing the standard error by 50% means the sample size must increase by a factor of 4 (since (1/√4) = 1/2).

If the Standard Error of the Population Is Reduced by 50