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5. Been to the movies lately? (3.5) An opinion poll calls 2000 randomly chosen residential telephone numbers, then asks to speak with an adult member of the household. The interviewer asks, "Box-office revenues are at an all-time high. How many movies have you watched in a movie theater in the past 12 months?" In all, 1131 people responded. The researchers used the responses to estimate the mean number of movies adults have watched in a movie theater in the past 12 months. A) Describe a potential source of bias related to the wording of the question. Suggest a change that would help fix this problem. B) Describe how using only residential phone numbers might lead to bias and how this will affect the estimate.

5. Been to the movies lately? (3.5) An opinion poll calls 2000 randomly chosen residential telephone numbers, then asks to speak with an adult member of the household. The interviewer asks, "Box-office revenues are at an all-time high. How many movies have you watched in a movie theater in the past 12 months?" In all, 1131 people responded. The researchers used the responses to estimate the mean number of movies adults have watched in a movie theater in the past 12 months. A) Describe a potential source of bias related to the wording of the question. Suggest a change that would help fix this problem. B) Describe how using only residential phone numbers might lead to bias and how this will affect the estimate.

Holt Mcdougal Larson Pre-algebra: Student Edition 2012
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.4: Collecting Data
Problem 3E
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5. Been to the movies lately? (3.5) An opinion poll calls 2000 randomly chosen residential telephone numbers, then asks to speak with an adult member of the household. The interviewer asks, "Box-office revenues are at an all-time high. How many movies have you watched in a movie theater in the past 12 months?" In all, 1131 people responded. The researchers used the responses to estimate the mean number of movies adults have watched in a movie theater in the past 12 months. A) Describe a potential source of bias related to the wording of the question. Suggest a change that would help fix this problem. B) Describe how using only residential phone numbers might lead to bias and how this will affect the estimate.
Transcribed Image Text:5. Been to the movies lately? (3.5) An opinion poll calls 2000 randomly chosen residential telephone numbers, then asks to speak with an adult member of the household. The interviewer asks, "Box-office revenues are at an all-time high. How many movies have you watched in a movie theater in the past 12 months?" In all, 1131 people responded. The researchers used the responses to estimate the mean number of movies adults have watched in a movie theater in the past 12 months. A) Describe a potential source of bias related to the wording of the question. Suggest a change that would help fix this problem. B) Describe how using only residential phone numbers might lead to bias and how this will affect the estimate.
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