Week 4 Workbook Exercise 36
To answer a question, please click on “Choose an item” and on the drop-down arrow and choose an answer. Here is a resulting drop-down list: If it is not working, you can enter your answers to the table at the end of the file.

1. Discuss each aspect of these results: F-value is less than 0.05 A. Yes. B. No.
Answer: A

We should reject the null hypothesis: A. Yes. B. No.
Answer: A

2. The null hypothesis for the Baird and Sands (2004) study that focuses on the effect of the GI with PMR treatment on patients’ mobility level A. The mean mobility scores are the same for the two groups. B. The mean mobility scores are not the same for the two groups.
Answer: A
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Treatment group mean=control group mean. With the p-value being< the alpha, the null hypothesis would be rejected indicating the difference in the mean mobility scores.
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3. The researchers stated that the participants in the intervention group reported a reduction in mobility difficulty at week 12. Was this result statistically significant, and if so what probability? A. Yes, at 0.05 level. B. No, at 0.05 level. C. Yes, at 0.001 level.
Answer: Choose an item.

4. If the researchers had set the level of significance or alpha=0.01, would the results of p=0.001 still be statistically significant? A. Yes. B. No.
Answer: A

5. If F(3,60)= 4.13, p=0.04, and α=0.01, is the result statistically significant? Would the null hypothesis be accepted or rejected? A. Yes. Reject the null hypothesis. B. Not significant. Do not reject the null hypothesis. C. Yes. Do not reject the null hypothesis. D. Not significant. Reject the null hypothesis.
Answer: C
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