(You can write a question)

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

a. What is the appropriate statistical test for identify the association between smoking and CHD ? Mark -1

b. What are the assumptions and application of the proposed test identified for Q.5aMark – 2

c. Assume that a is set to 0.05 for a two-tailed test and the estimated p-value is 0.0012, What do you conclude? Mark – 1