Question

select the correct answer. which statement is true? a. a sample statistic can never be equal to the population parameter. b. point estimates are defined for both samples and populations. c. to calculate a sample proportion, we need to know the population size. d. to calculate a point estimate, we need to know the sample size.

Explanation:

A is false as sample statistic can equal parameter. B is wrong as point - estimates are for samples. C is incorrect as sample proportion doesn't need population size. D is true as sample size is used in point - estimate calculations.

Answer:

D. To calculate a point estimate, we need to know the sample size.