Case Study 3 NURS 330: "Arrhythmias in patients with acute coronary syndrome in the first 24 hours of hospitalization" Directions: After reading the Journal article(s) please answer the following questions. Each question is worth one point and partial credit maybe reward, based on how much evidence is given. The Case Studies are given to demonstrate how the information from the chapters is applied in a real world situation. 1. What kind of study design is presented here (Experimental or Observational)? Explain. 2. How many individuals were in the study at the start? n= How many were in the final sample? n= 278 How many individuals were in the study at the one-year follow up? n= 3. In Table 1, what is the mode for cardiovascular risk factors? What percentage of the patients experienced this risk factor? (Remember mode does not have to be quantitative) . Which measure of central tendency always represents an actual value of the distribution, when using qualitative data? (Qualitative is non-numerical and this is a multiple choice question) a. Mean b. Median c. Mode 100 sheets d. Range 5. What is the mode for the variable presenting symptoms to the ED? What percentage of the patients had this symptom? 6. What are the three most common presenting symptoms to the ED? Hyperten su, hyper cholesterolemia, and family history it coronary artery disease. 7. Following question 6 why is this clinically important, to know the 3 most common presenting symptoms? 8. For this study, what are the mean and median ages in years for the study participants? What does this tell us about the distribution shape? 9. What is the standard deviation for age and ECG recording time? 10. What is the alpha level the author stated to be significant? . 5