Conducted at Playboy.com, the survey asked 5000 U.S. university and college students about their sex lives. Of the respondents, 80% were male and 20% were female. One question asked the following: "Are you in a nude picture on someone's camera phone?" Thirty-four percent said "yes." a. Other samples of 5,000 people, asked the same question, would not produce a sample percentage of 34%. What is this kind of variability called? Non-sampling variability, Sampling variability, Margin of error variability, Non-response variability b. If the sample had truly been a random sample of all university and college students, what percentage of women would you expect to have been in the sample? About 5%, About 34%, About 50%, About 66% c. Name at least one error you'd expect this survey to suffer from, even if all 15.9 million college and university students in the UNited States had answered, not just 5,000. Discuss how this error might be addressed by a reputable polling organization.
Course: STA 210 Textbook: Beyond the Numbers, 8th Edition, William Rayens, ISBN: 978-1-61740-758-1 (Not Found)
Chapter 7 Exercises: 1) That's Getting Personal
Conducted at Playboy.com, the survey asked 5000 U.S. university and college students about their sex lives. Of the respondents, 80% were male and 20% were female. One question asked the following:
"Are you in a nude picture on someone's camera phone?"
Thirty-four percent said "yes."
a. Other samples of 5,000 people, asked the same question, would not produce a sample percentage of 34%. What is this kind of variability called?
Non-sampling variability, Sampling variability, Margin of error variability, Non-response variability
b. If the sample had truly been a random sample of all university and college students, what percentage of women would you expect to have been in the sample?
About 5%, About 34%, About 50%, About 66%
c. Name at least one error you'd expect this survey to suffer from, even if all 15.9 million college and university students in the UNited States had answered, not just 5,000. Discuss how this error might be addressed by a reputable polling organization.
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