Consider the hypothetical study described below. Based solely on the information given, do you have reason to question the results of the study? Explain your reasoning. A TV talk show host asks the TV audience, "Do you support new national mileage standards forautomobiles?" and asks people to vote by telephone at a toll-free number. Is there reason to question the results?A. No, there is not reason. The goal of the study is clear.B. Yes, there is reason. The TV audience might not be representative of the population.C. No, there is not reason. There is no bias in the study.D. Yes, there is reason. The wording of the question might produce inaccurate or dishonest responses.E. Yes, there is reason. Call-in polls tend to be biased.F. No, there is not reason. It is unlikely that there are any confounding variables in the study.
Accepted Solution
A:
Answer:(B) Yes, there is reason. The TV audience might not be representative of the population.(E) Yes, there is reason. Call-in polls tend to be biased.Step-by-step explanation:According to the information given we might consider two answers.The first answer is:(B) Yes, there is reason. The TV audience might not be representative of the population.Let's remember that for a sample to be representative of a population must be random and every person must have the same probability of being selected. Here, the question is targeted only to the TV show's audience, so the results can only be interpreted for this segment of the population.(E) Yes, there is reason. Call-in polls tend to be biased.The risk is that the people who call might be influenced by the show itself and would not give an unbiased answer. This creates a bias on the sample. Besides, as stated before, not all the elements of the population can be part of the sample.