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A simple random sample with n = 56 provided a sample mean of 29.5 and a sample...

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Question

Statistics

A simple random sample with

n = 56

provided a sample mean of 29.5 and a sample standard deviationof 4.4.

A. Develop a 90% confidence interval for the populationmean.

B. Develop a 95% confidence interval for the populationmean.

C. Develop a 99% confidence interval for the populationmean.

Answer & Explanation Solved by verified expert
4.1 Ratings (539 Votes)
Solution Given thatPoint estimate sample mean 295sample standard deviation s 44sample size n 56Degrees of freedom df n 1 56 1 55a At 90    See Answer
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