A sample of 250 people resulted in a confidence interval estimate of between 0.14 and 0.20 for the proportion of people who believe that the federal government's proposed tax increase is justified. Based on this information, what was the confidence level used in this estimation?
A) approximately 79%
B) 95%
C) approximately 36.9%
D) approximately 1.26%
E) It cannot be determined with the information given.

Question

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The Answer of A sample of 250 people resulted in a confidence interval estimate of between 0.14 and 0.20 for the proportion of people who believe that the federal government's proposed tax increase is justified. Based on this information, what was the confidence level used in this estimation?
A) approximately 79%
B) 95%
C) approximately 36.9%
D) approximately 1.26%
E) It cannot be determined with the information given.

A Sample of 250 People Resulted in a Confidence Interval