Sample Selection : Recommend the steps that should be taken to draw the particular sample described below.

Sample Selection

Recommend the steps that should be taken to draw the particular sample described below.

Format your response as a procedure.

a. A stratified sample of 75 doctors, 75 lawyers and 75 engineers who belong to a professional organization in that you belong to.

b. A simple random sample of 150 subscribers to your local newspaper.

c. A systematic sample of 250 subscribers from a subscriber list of a trade publication.