The only time the population size is important in the calculation of sample size is:
a. Always; all formulas include N, a count of the total population.
b. When the population is very, very large.
c. When the population is not normal.
d. When the level of accuracy needs to be less than ±5 percent.
e. When the population is small, relative to the sample size.
Answer: e. When the population is small, relative to the sample size.