Questions

1. True or False Tests of mean differences are to make mean comparisons.

2. List common assumptions for tests of mean differences and discuss why it is important to check them.

3. True or False An administration staff is making comparison between sample mean ACT score and a known population mean ACT score. The most appropriate statistical test will be dependent sample t-test.

4. True or False A doctor wants to compare differences between control and experimental group on the effectiveness in treating a constipation. The most appropriate statistical test will be independent samples t-test.

5. True or False A (PA) researcher is examining whether the amount of exercise (None, 1 time per week, 2 times per week, and more than 2 times per week) has any influence on personal satisfaction. The most appropriate statistical test is one-way ANOVA.

6. True or False The manager wants to compare differences in safety culture scores from respondents in accredited nursing homes across two time points. The most appropriate statistical test is one-way one-sample t-test.

7. True or False A (PA) researcher is examining whether the amount of exercise (None, 1 time per week, 2 times per week, and more than 2 times per week) and ethnicity (Caucasian, African American, and Asian) has any influence on personal satisfaction. The most appropriate statistical test is one-way MANOVA.

8. True or False A (PA) researcher is examining whether the amount of exercise (None, 1 time per week, 2 times per week, and more than 2 times per week has any influence on personal satisfaction. However, there is evidence from the literature that age may also influence personal satisfaction. The most appropriate statistical test is Analysis of Covariance.

9. True or False A director is interested in determining whether there were statistically significant differences in outcome measures measured in 4 different time points (Baseline, 3 months after, 6 months after, and 9 months after). The most appropriate statistical test is factorial ANOVA.

10. True or False A researcher is interested in determining if an exercise intervention improves mobility endurance and physical activity. The most appropriate statistical test is multivariate ANOVA (MANOVA).