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Exercise 6 (Example)

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 Applied Statistics Student’s Name Institution Affiliation Applied Statistics 1. The frequency of the COPD patients in the severe airflow limitation group is 7 and the percentage is 14%. 2. 61% of the total sample is retired while 15% of the total sample are on sick leave. suffer from acute aggravation. You are more likely to have an acute aggravation so you are more likely to use the drug to prevent it. 10. Yes since the findings have provided the statistical p value which indicates the strength of the evidence they have provided. [...]

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EXERCISE 6 Understanding Frequencies and Percentages 1. What are the frequency and percentage of the COPD patients in the severe airflow limita¬tion 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 significant difference between the moderate and severe airflow 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 significant difference between the moderate and severe airflow limitation groups for psychological symptoms? 7. What frequency and percentage of the total sample used short-acting β2-agonists? Show your calculations and round to the nearest whole percent. 8. Is there a significant difference between the moderate and severe airflow limitation groups regarding the use of short-acting β2-agonists? Provide a rationale for your answer. 9. Was the percentage of COPD patients with moderate and severe airflow limitation using short-acting β2-agonists what you expected? Provide a rationale for your answer with documentation. 10. Are these findings ready for use in practice? Provide a rationale for your answer. see attached data study for exercise questions

Subject Area: Mathematics

Document Type: Dissertation Proposal

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Words 275

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03.07.2018

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