Question

fill in the blank. if a sample size is less than ______, the sample size must come from a population having a normal distribution in order to follow normal distribution calculations. a. 40 b. 30 c. 50 d. 100

Explanation:

According to the Central - Limit Theorem, when the sample size is less than 30, for the sampling distribution to follow normal distribution calculations, the sample must come from a normally - distributed population.

Answer:

B. 30