What three factors are needed to calculate sample size?
A)Variability,precision,and confidence.
B)Variability,precision,and population size.
C)Precision,confidence,and population size.
D)Precision,population size,and costs.
E)None of the above.

Question

Quizplus · Accepted Answer

Variability, precision, and confidence are the three essential factors required to calculate sample size accurately. Variability refers to the differences in the characteristics of the sample population, while precision determines the degree of accuracy needed in the sample size estimation. Confidence level is the probability of the sample size's accuracy being within the estimated range.

What Three Factors Are Needed to Calculate Sample Size