Saudi Electronic University Health & Medical Questions

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 participants 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 Q.5a Mark – 2