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| R3.36. Bias? Political analyst Michael Barone has written that "conservatives are more likely than others to refuse to respond to polls, particularly those polls taken by media outlets that conservatives consider biased" (The Weekly Standard, March 10, 1997). The Pew Research Foundation tested this assertion by asking the same questions in a national survey run by standard methods and in a more rigorous survey that was a true SRS with careful follow-up to encourage participation. The response rate in the "stan- dard survey" was 42%. The response rate in the "rigorous survey" was 71%. a) What kind of bias does Barone claim may exist in polls? b) What is the population for these surveys? c) On the question of political position, the Pew researchers report the following table: Conservative Moderate Liberal Standard Survey 37% 40% 19% Rigorous Survey 35% 41% 20% What makes you think these results are incomplete? d) The Pew researchers report that differences between opinions expressed on the two surveys were not statisti- cally significant. Explain what "not statistically signifi- cant" means in this context.

| R3.36. Bias? Political analyst Michael Barone has written that "conservatives are more likely than others to refuse to respond to polls, particularly those polls taken by media outlets that conservatives consider biased" (The Weekly Standard, March 10, 1997). The Pew Research Foundation tested this assertion by asking the same questions in a national survey run by standard methods and in a more rigorous survey that was a true SRS with careful follow-up to encourage participation. The response rate in the "stan- dard survey" was 42%. The response rate in the "rigorous survey" was 71%. a) What kind of bias does Barone claim may exist in polls? b) What is the population for these surveys? c) On the question of political position, the Pew researchers report the following table: Conservative Moderate Liberal Standard Survey 37% 40% 19% Rigorous Survey 35% 41% 20% What makes you think these results are incomplete? d) The Pew researchers report that differences between opinions expressed on the two surveys were not statisti- cally significant. Explain what "not statistically signifi- cant" means in this context.

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
Section: Chapter Questions
Problem 8CR
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R3.36. Bias? Political analyst Michael Barone has written that "conservatives are more likely than others to refuse to respond to polls, particularly those polls taken by media outlets that conservatives consider biased" (The Weekly Standard, March 10, 1997). The Pew Research Foundation tested this assertion by asking the same questions in a national survey run by standard methods and in a more rigorous survey that was a true SRS with careful follow-up to encourage participation. The response rate in the "stan- dard survey" was 42%. The response rate in the "rigorous survey" was 71%. a) What kind of bias does Barone claim may exist in polls? b) What is the population for these surveys? c) On the question of political position, the Pew researchers report the following table: Conservative Moderate Liberal Standard Survey 37% 40% 19% Rigorous Survey 35% 41% 20% What makes you think these results are incomplete? d) The Pew researchers report that differences between opinions expressed on the two surveys were not statisti- cally significant. Explain what "not statistically signifi- cant" means in this context.
Transcribed Image Text:R3.36. Bias? Political analyst Michael Barone has written that "conservatives are more likely than others to refuse to respond to polls, particularly those polls taken by media outlets that conservatives consider biased" (The Weekly Standard, March 10, 1997). The Pew Research Foundation tested this assertion by asking the same questions in a national survey run by standard methods and in a more rigorous survey that was a true SRS with careful follow-up to encourage participation. The response rate in the "stan- dard survey" was 42%. The response rate in the "rigorous survey" was 71%. a) What kind of bias does Barone claim may exist in polls? b) What is the population for these surveys? c) On the question of political position, the Pew researchers report the following table: Conservative Moderate Liberal Standard Survey 37% 40% 19% Rigorous Survey 35% 41% 20% What makes you think these results are incomplete? d) The Pew researchers report that differences between opinions expressed on the two surveys were not statisti- cally significant. Explain what "not statistically signifi- cant" means in this context.
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