A researcher is interested in comparing steroid use between…
A researcher is interested in comparing steroid use between major league baseball players (a total population of 900 players), major league soccer players (a total population of 500 players), and major league lacrosse players (a total population of 200 players). Unfortunately, she only has the resources to survey a total of 300 athletes. She wants to use probability sampling and she wants to have an equal number of major league baseball, soccer, and lacrosse players. Therefore, she should use_____.