Use the data set provided, answer the following questions:Q1- Q4
A study was conducted to identify the changes in triglyceride levels of subjects followed by a specific diet. The diet consists primarily of protein and animal fat, restricting carbohydrate intake. The study participants followed the diet with length of time varying from 3 to 17 weeks (Datasheet is provided in excel attachment )
Q1. Write a statistical summary for participant’s demographic details that includes variable age, gender, weeks on diet & physical activity?
Mark -2 Q2. Compute most appropriate measure of central tendency & dispersion to report the variable “changes in triglyceride level” and address its worthiness?
Mark – 2
Q3. What is the appropriate statistical test for identifying significance difference in the “changes in triglyceride levels” in male and females & Why?
Mark – 1
Q4. What are the assumptions underlying the test you identified in Question-3?
Mark -1
Q5: In a cross sectional study on coronary heart disease (CHD), the smoking and CHD status are summarized below
| CHD | Total | ||
| Smoking | Present | Absent | |
| Yes | 55 | 84 | 139 |
| No | 552 | 1927 | 2479 |
| Total | 607 | 2011 | 2618 |
- What is the appropriate statistical test for identify the association between smoking and CHD ? Mark -1
- What are the assumptions and application of the proposed test identified for 5a Mark – 2
- Assume that a is set to 05 for a two-tailed test and the estimated p-value is 0.0012, What do you conclude? Mark – 1
