4. In a study in Psychological Reports, a sample of 547 nonsmokers was selected from a large Midwestern university. The sample contained 330 women and 217 men. These students were asked to complete a questionnaire concerning students who smoked. Seventy-six percent of those surveyed strongly agreed with the statement, I am less likely to want a smoker for a roommate. Sixty- three percent of those surveyed strongly agreed with the statement, I am less likely to want a smoker for a date. Sixty-seven percent of those surveyed strongly agreed with the statement, I am less likely to want a smoker for a husband or wife. a. Identify the population. b. What characteristics of the population are being measured? c. Identify the sample. d. Give one statistical inference that may be made from the data. e. Why is this called an inference