Chapter 8, Problem 1SE

Choose one of the answers given. The null hypothesis is always a statement about a $$ \_$$ \_$$ \_$$ \_$$ \_$$ (sample statistic or population parameter).

To determine

Determine whether the null hypothesis is the statement about the sample statistic or the population parameter.

Answer to Problem 1SE

The null hypothesis is always a statement about a $\underset{¯}{\text{population parameter}}$.

Explanation of Solution

There is a pair of hypotheses in the hypothesis testing, that are null hypothesis and the alternative hypothesis. These hypotheses are the statements about the population parameters.

Thus, the null hypothesis, which is denoted as $H_0$, is the statement about the population parameter.