A Gallup Poll asked a random sample of American adults the question \"Do you fav

Question

A Gallup Poll asked a random sample of American adults the question "Do you favor the death penalty for a person convicted of murder?" Of these, 65% responded "Yes" and a 95% confidence interval resulted in the upper and lower confidence limits of 60.8% and 69.2%, respectively. The correct interpretation of the confidence interval is as follows:

A. We are 95% confident that the percentage of all American adults who favor the death penalty for a person convicted of murder is between 60.8% and 69.2%.

B. We are 95% confident that the sample percentage is between 60.8% and 69.2%.

C. We are 95% confident that between 60.8% and 69.2% of all adults in the world favor the death penalty for a person convicted of murder.

D. In 95% of samples of American adults the percentage who favor the death penalty for those convicted of murder will be between 60.8% and 69.2%.

Explanation / Answer

Ans: A. We are 95% confident that the percentage of all American adults who favor the death penalty for a person convicted of murder is between 60.8% and 69.2%.

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