choose the correct answer:

A randomly selected sample of 1,000 college students was asked whether they had ever used the drug Ecstasy. Sixteen percent of the 1,000 students surveyed said they had. Which one of the following statements about the number 0.16 is correct? Oa. It is a randomly chosen number. Ob. It is a population proportion. c. It is a sample proportion. O d. It is a margin of error. QUESTION 2 2 points Save Answer In a past General Social Survey, a random sample of men and women answered the question "Are you a member of any sports clubs?" Based on the sample data, 95% confidence intervals for the population proportion who would answer "yes" are (0.13 to 0.19) for women and (0.247 to 0.33) for men. Based on these results, you can reasonably conclude that a. There is a difference between the proportions of American men and American women who belong to sports clubs. Ob. At least 25% of American men and American women belong to sports clubs. c. At least 16% of American women belong to sports clubs. Od. There is no conclusive evidence of a gender difference in the proportion belonging to sports clubs. QUESTION 3 1 points Save Answer Null and alternative hypotheses are statements about a. population parameters. Ob. sample parameters. c. sample statistics. Od. it depends - sometimes population parameters and sometimes sample statistics