1. A recent study reported that people who move from home to home frequently as children tend to have lower than average levels of well-being as adults. To further examine this relationship, a...

1. A recent study reported that people who move from home to home frequently as children tend to have lower than average levels of well-being as adults. To further examine this relationship, a researcher obtains a sample of
n
= 10 young adults who each experienced 5 or more different homes before they were 16 years old. These participants were given a standardized well-being questionnaire for which the general population has an average score of µ = 40. The well-being scores for the sample are as follows:

38, 41, 35, 42, 40, 33, 33, 36, 32, 39.

On the basis of this sample, is well-being for frequent movers significantly different from well-being in the general population?

1. State the null and research hypotheses and select an alpha level.

2. Locate the critical region(s).

3. Calculate the test statistic.

4. Make a decision.

5. Compute the estimated Cohen’s
d. How would you classify the size of the difference?

6. Compute
r²
. What does this effect size measure?