A randomly selected sample of 1,000 college students was asked ...

[cmoore54]

A randomly selected sample of 1,000 college students was asked whether they had ever used the drug Ecstasy. Sixteen percent (16 or 0.16) of the 1,000 students surveyed said they had. Which one of the following statements about the number, 0.16 is correct?
 a. It is a sample proportion.
  b. It is a population proportion.
  c. It is a margin of error.
  d. It is a randomly chosen number.

Question 2

Studies have shown that growing numbers of young girls are beginning to use steroids. At a committee hearing, a survey by the Centers for Disease Control and Prevention of high school students was cited, in which 7.3 percent of ninth-grade girls said they had used illegal steroids. One critic of the results objected to the methodology of the survey, which used an anonymous questionnaire and did not ask what substances were used. He suggested that some of the teenagers might have thought incorrectly that were using anabolic steroids. What type of bias is being raised by this issue?

[Ahernandez18]

Answer to Question 1

A

Answer to Question 2

The type of bias being raised is response bias; the participants may have provided incorrect information because of what was asked and how questions were worded.

[cmoore54]

Excellent

[abro1885]

Gracias!