When gathering a sample for your study, you selected subjects in the general population and categorized them as smokers and non smokers. Which type of sample do you have?

a. random sample
b. stratified random sample
c. cluster sample
d. none of these


Answer: b. stratified random sample

Nutritional Science

You might also like to view...

What is median salary of a sous chef?

A. $48,000 B. $42,000 C. $41,000 D. $21,000

Nutritional Science

What lifestyle change would be most important to individuals with a common variant in the GST gene that impairs protection against toxins?

A) ?increasing levels of daily exercise B) ?eating a low-fat diet C) ?increasing ingestion of cruciferous vegetables D) ?increasing intake of omega-3 fats

Nutritional Science

Heating and enzymatically treating starch creates ____.?

A) ?chitin B) ?lignins C) ?resistant dextrins D) ?mucilages

Nutritional Science

Discuss public health intervention strategies for the treatment of obesity and overweight among adults

Nutritional Science