Question

Online polls In June $2008,$ Parade magazine posed the following question: "Should drivers be banned from using all cell phones?" Readers were encouraged to vote online at parade.com. The July 13 $2008,$ issue of Parade reported the results: 2407 $(85 \%)$ said "Yes" and $410(15 \%)$ said "No." obtain? (a) What type of sanple did the Pardde survey (b) Explain why this sampling method is biased. Is $85 \%$ probably higher or lower than the true percent of all adults who believe that cell phone use while driving should be banned? Why?

Name: Problem 10, Chapter 4: The Practice of Statistics for AP
Uploaded: 2023-11-06T18:00:56-08:00
Channel: Rashmi Sinha

   Online polls In June $2008,$ Parade magazine posed the following question: "Should drivers be banned from using all cell phones?" Readers were encouraged to vote online at parade.com. The July 13 $2008,$ issue of Parade reported the results: 2407 $(85 \%)$ said "Yes" and $410(15 \%)$ said "No." obtain?
(a) What type of sanple did the Pardde survey
(b) Explain why this sampling method is biased. Is $85 \%$ probably higher or lower than the true percent of all adults who believe that cell phone use while driving should be banned? Why?

The Practice of Statistics for AP

Daren S. Starnes,… 5th Edition

Chapter 4, Problem 10

Instant Answer

Solved by Expert Rashmi Sinha

11/06/2023

Step 1

From the given information, we can see that the participants were not forced or influenced to participate in the survey. They decided on their own to participate. This type of sample is known as a voluntary sample. Show more…

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Online polls In June $2008,$ Parade magazine posed the following question: "Should drivers be banned from using all cell phones?" Readers were encouraged to vote online at parade.com. The July 13 $2008,$ issue of Parade reported the results: 2407 $(85 \%)$ said "Yes" and $410(15 \%)$ said "No." obtain? (a) What type of sanple did the Pardde survey (b) Explain why this sampling method is biased. Is $85 \%$ probably higher or lower than the true percent of all adults who believe that cell phone use while driving should be banned? Why?

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Key Concepts

Voluntary Response Sampling

Voluntary response sampling is a method where participants self-select into the survey instead of being randomly chosen by the researcher. This approach often attracts individuals who have strong opinions or interests in the subject matter, which can lead to results that are not representative of the general population.

Sampling Bias

Sampling bias occurs when the sample collected is systematically unrepresentative of the target population, leading to skewed results. In the context of online polls and other surveys where participation is voluntary, those who opt to participate may have different characteristics or opinions than those who do not, meaning that the observed percentages may not accurately reflect the true views of the entire population.

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