Question: For the situations presented below, indicate what would be the relevant population and the most appropriate sampling technique. Make sure you discuss the reasons for your answers.

Carbondale is a university town with about 24,000 studentsa number of whom come from various parts of the world. For instance, there are about 200 Indian and 600 Malaysian studentsabout half of each category being womenand a further 1,000 students from over 55 other countries attend Southern Illinois University at Carbondale. Martha Ellenden, a talented and adventurous seamstress, desires to open a tailoring shop (so rare these days!) in Carbondale, close to the University Mall, where she lives. She has a good sewing machine and would start her business immediately if she knew there would be adequate demand for her services. To assess the market potential, Martha would like to talk to a few women to estimate how many clients she might attract. While the American women buy ready-made clothes from the University Mall, she knows that the international women, particularly the Indians and the Malays, prefer to buy plain material from the Mall and either stitch their own blouses or get them stitched at their native homes. How should Martha go about selecting a sample of 45 individuals to estimate the potential demand?