A statistical hypothesis is always a statement about a ________________, NOT about a ____________.
A) parameter; statistic
B) statistic; parameter
C) nonparametric measure; statistic
D) random variable; fixed value

Question

Quizplus · Accepted Answer

A statistical hypothesis is always a statement about a parameter, which is a fixed numerical characteristic of a population, NOT about a statistic, which is a numerical summary of a sample. The purpose of hypothesis testing is to make inferences about the population based on sample data. Therefore, the null and alternative hypotheses must be statements about the population parameter(s) of interest, such as the population mean, proportion, or standard deviation.

A Statistical Hypothesis Is Always a Statement About a ________________