## Description

**HLT 362V Week 1 Module 1 EXERCISE 6, Understanding Frequencies and Percentages **

- What are the frequency and percentage of the COPD patients in the severe airflow limitation group who are employed in the Eckerblad et al. (2014) study?
- What-percentage of the total sample is retired? What percentage of the total sample is on sick leave?
- 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.
- 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.
- 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.
- 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
- What frequency and percentage of the total sample used short-acting β2-agonists? Show your calculations and round to the nearest whole percent
- 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.
- 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.
- Are these findings ready for use in practice? Provide a rationale for your answer.

**HLT 362V Week 1 Module 1 EXERCISE 8: Measures of Central Tendency: Mean, Median, and Mode **

- The number of nursing students enrolled in a nursing program between the years of 2010 and 2016, respectively, were 563, 593, 606, 520, 563, 610, and 577. Determine the mean (
*X*), median (*MD*), and mode of the number of the nursing students enrolled in this program. Show your calculations. - What is the mode for the variable inpatient complications in Table 2 of the Winkler et al. (2014) study? What percentage of the study participants had this complication?
- Does the distribution of inpatient complications have a single mode, or is this distribution bimodal or multimodal? Provide a rationale for your answer.
- As reported in Table 1, what are the three most common cardiovascular medical history events in this study, and why is it clinically important to know the frequency of these events?
- What are the mean and median lengths of stay (LOS) for the study participants? hlt 362 module 1
- Are the mean and median for LOS similar or different? What might this indicate about the distribution of the sample? Provide a rationale for your answer.
- Examine the study results and determine the mode for arrhythmias experienced by the participants. What was the second most common arrhythmia in this sample
- Was the most common arrhythmia in Question 7 related to LOS? Was this result statistically significant? Provide a rationale for your answer.
- What study variables were independently predictive of the 50-premature ventricular contractions (PVCs) per hour in this study?
- In Table 1, what race is the mode for this sample? Should these study findings be generalized to American Indians with ACS? Provide a rationale for your answer.

**HLT 362 Module 1 EXERCISE 9: Measures of Dispersion: Range and Standard Deviation**

- What were the name and type of measurement method used to measure Caring Practices in the Roch, Dubois, and Clarke (2014) study?
- The data collected with the scale identified in Questions 1 were at what level of measurement? Provide a rationale for your answer.
- What were the subscales included in the CNPISS used to measure RNs’ perceptions of their Caring Practices? Do these subscales seem relevant? Document your answer.
- Which subscale for Caring Practices had the lowest mean? What does this result indicate? hllt 362 module 1
- What were the dispersion results for the Relational Care subscale of the Caring Practices in Table 2? What do these results indicate?
- Which subscale of Caring Practices has the lowest dispersion or variation of scores? Provide a rationale for your answer.
- Which subscale of Caring Practices had the highest mean? What do these results indicate?
- Compare the Overall rating for Organizational Climate with the Overall rating of Caring Practices. What do these results indicate?
- The response rate for the survey in this study was 45%. Is this a study strength or limitation? Provide a rationale for your answer.
- What conclusions did the researchers make regarding the caring practices of the nurses in this study? How might these results affect your practice?

**HLT 362V Module 1 EXERCISE 27: Calculating Descriptive Statistics**

- What is the mean age of the sample data?
- What percentage of patients never used tobacco?
- What-is the standard deviation for age?
- Are there outliers among the values of age? Provide a rationale for your answer.
- What is the range of age values?
- What percentage of patients had been taking Infliximab?
- What-percentage of patients had rheumatoid arthritis as their primary diagnosis?
- What percentage of patients had irritable bowel syndrome as their primary diagnosis?
- What is the 95% CI for age?
- What-percentage of patients had psoriatic arthritis as their primary diagnosis?