# HLT-362V Week 1 Exercise 6 Questions to Be Graded

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HLT-362V Week 1 Exercise 6 Questions to Be Graded

Applied Statistics for Health Care Professionals - What Is Statistics and Why It Is Important to Health Sciences?

Grand Canyon University

1. What are the frequency and percentage of the COPD patients in the severe air?ow limitation group who are employed in the Eckerblad et al. (2014) study?

2. What percentage of the total sample is retired? What percentage of the total sample is on sick leave?

3. What is the total sample size of this study? What frequency and percentage of the total sample were still employed? Show your calculations and round your answer to the nearest whole percent.

4. What is the total percentage of the sample with a smoking history—either still smoking or former smokers? Is the smoking history for study participants clinically important? Provide a rationale for your answer.

5. What are pack years of smoking? Is there a signi?cant difference between the moderate and severe air?ow limitation groups regarding pack years of smoking? Provide a rationale for your answer.

6. What were the four most common psychological symptoms reported by this sample of patients with COPD? What percentage of these subjects experienced these symptoms? Was there a signi?cant difference between the moderate and severe air?ow limitation groups for psychological symptoms?

7. What frequency and percentage of the total sample used short-acting β 2 -agonists? Show your calculations and round to the nearest whole percent.

8. Is there a signi?cant difference between the moderate and severe air?ow limitation groups regarding the use of short-acting β 2 -agonists? Provide a rationale for your answer.

9. Was the percentage of COPD patients with moderate and severe air?ow limitation using short-acting β 2 -agonists what you expected? Provide a rationale with documentation for your answer.