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In a survey of 2508 2508 adults in a recent​ year, 1395 1395 say they have...

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Statistics

In a survey of 2508 2508 adults in a recent​ year, 1395 1395 saythey have made a New​ Year's resolution. Construct​ 90% and​ 95%confidence intervals for the population proportion. Interpret theresults and compare the widths of the confidence intervals. The​90% confidence interval for the population proportion p is leftparenthesis nothing comma nothing right parenthesis , . ​(Round tothree decimal places as​ needed.) The​ 95% confidence interval forthe population proportion p is left parenthesis nothing commanothing right parenthesis , . ​(Round to three decimal places as​needed.) With the given​ confidence, it can be said that the ▼ ofadults who say they have made a New​ Year's resolution is ▼ betweenthe endpoints less than the upper endpoint not between theendpoints greater than the lower endpoint of the given confidenceinterval. Compare the widths of the confidence intervals. Choosethe correct answer below. A. The​ 90% confidence interval is wider.B. The​ 95% confidence interval is wider. C. The confidenceintervals cannot be compared. D. The confidence intervals are thesame width.

Answer & Explanation Solved by verified expert
3.8 Ratings (632 Votes)
Solution Given thatn 2508x 1395Point estimate sample proportion x n 1395 2508 05561 1 0556 0444At 90 confidence level 1 90 1 090 0102    See Answer
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