A public health researcher wants to have high efficiency in estimating the population prevalence of Alzheimer's disease using a random sample of adults. Which of these samples would best accomplish this goal?
A) a sample of size 1,000
B) a sample of size 1,050
C) a sample of size 1,080
D) All samples would be equally efficient, so long as they are simple random samples.

Question

Quizplus · Accepted Answer

A larger sample size generally provides higher efficiency in estimating population parameters, and 1,080 is the largest sample size among the options.

A Public Health Researcher Wants to Have High Efficiency in Estimating