Question

State a null hypothesis and an alternative hypothesis of the following case.

Six months after the local newspaper ran a week-long series of articles on the Northlake, Virginia, Community Pride Center, the director wants to see whether this positive media coverage improved turnout at the center’s after-school recreation programs, compared to turnout before the media coverage took place.

• Write up null and research hypotheses.

1. Null Hypothesis:
2. Research Hypothesis (For the research hypothesis, please use two-tail test):

Answer 1

Let represents the turnout at the center’s after-school recreation programs and represents the turnout at the center’s before-school recreation programs. Then:

Null hypothesis (Ho):

Research hypothesis (Ha):

Ideally the research hypothesis in this scenario should be because director is interested in the fact whether turnover has improved or not but since it is specifically mentioned to use two-tail test, i have written as in case of two tailed, this will be the research hypothesis.