CASE STUDY 27.6 SEX, ALCOHOL, AND THE FIRST DATE

Multiple Choice

CASE STUDY 27.6
SEX, ALCOHOL, AND THE FIRST DATE
For Questions , use the following narrative
Narrative: Case study 27.6 summary
Young couples are much more likely to have sex on their first date if the male partner drinks alcohol and the woman doesn't, new research shows.The study was based on interviews with 2,052 teenagers.They reported having sex on a first date only 6% of the time if the female drank alcohol while the male did not, compared to 8% of the time when neither partner drank.Nineteen percent of the teens reported having sex when both partners drank, but the highest frequency of sex on the first date - 24 percent - was reported when only the male drank.

-{Case study 27.6 narrative} The margin of error for these results is about plus or minus 2%.What real meaning does the margin of error have for this particular study, in terms of making conclusions about the population percentages?

A) It means that you have to add and subtract 2% from each of the percentages stated in the study, to get an idea of what the population percentages are for all teenagers.
B) It means that the bias in the results is measured to be about 2% in either direction.
C) The margin of error in this case has very little meaning because of the severe bias in the data in terms of how it was collected.The percentages quoted in the article are most likely off to begin with.
D) The sample results will differ from the true value in the population by at most 2% in either direction, due to sampling error.