What Three Factors Are Needed to Calculate Sample Size

question 12

Multiple Choice

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.

---

Definitions:

Standard Deviation

A measure of the amount of variation or dispersion in a set of values, indicating the spread from the mean.

Physical Fitness

The ability of an individual to carry out daily tasks with optimal performance, endurance, and strength, due to good health and physical conditioning.

One-sample T Test

A statistical test used to compare the mean of a sample to a known value or theoretical expectation.

Normal Population

A population distribution that follows a normal (bell-shaped) curve, indicating that the mean, median, and mode are equal.