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Samples of size 49 are taken from a population with a of 17. If the mean of the sample is 25, what is the confidence interval at the 90% confidence

Samples of size 49 are taken from a population with a σ of 17. If the mean of the sample is 25, what is the confidence interval at the 90% confidence level?

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Statistics and Probability-8203790.doc

8203790 Samples of size 49 are taken from a population with a σ of 17. If
the mean of the sample is 25, what is the confidence interval at
the 90% confidence level?
(25 1.96 * ) = (20.24, 29.76 )

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