"One of the methods of logical reasoning process" is called

1 If we took the 500 people attending a school in New York City, divided them by gender, and then took a random sample of the males and a random sampling of the females, the variable on which we would divide the population is called the ........ 2 Which of the following sampling methods is the best way to select a group of people for a study if you are interested in making statements about the larger population? 3 The number of questionnaires returned or completed divided by the total number of eligible people who were contacted or asked to participate in the survey is called the 4 A researcher divides the populations into PG, graduates and 10+2 students and using the random digit table he selects some of them from each. This is technically called 5 A set of principles to guide and assist researchers in deciding which goals are most important and in reconciling conflicting values when conducting research is called ........