A correspondent for a news program appears evenings on television throughout the

Question

A correspondent for a news program appears evenings on television throughout the country. This correspondent asked viewers to call in with their answer to this question: "If you had it to do all over again, would you vote for the president?" Of the more than 10,000 viewers who responded, 70% said no. What can be concluded about the viewers? This is a legitimate sample, randomly drawn from the correspondent's viewers and of sufficient size to conclude that most of the viewers would have second thoughts about voting for the president. The survey would be more meaningful if the correspondent had used a control group. No meaningful conclusion is possible due to voluntary response bias. No meaningful conclusion is possible without knowing something more about the characteristics of the correspondent's viewers.

Explanation / Answer

A voluntary response bias exists when the viewers have strong opinions of certain people. Here there is a high probability that the people who refused to vote form major chunk of those who dont want to vote to either of the presidents. so answer is C

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