SOLUTION: A 95% confidence interval estimate for a population mean was computed to be (28.7, 40.9). Determine the mean of the sample, which was used to determine the interval estimate (show

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Question 363870: A 95% confidence interval estimate for a population mean was computed to be (28.7, 40.9). Determine the mean of the sample, which was used to determine the interval estimate (show all work).

Answer by stanbon(75887)   (Show Source): You can put this solution on YOUR website!
A 95% confidence interval estimate for a population mean was computed to be (28.7, 40.9). Determine the mean of the sample, which was used to determine the interval estimate (show all work).
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Equations:
x-bar + E = 40.9
x-bar - E = 28.7
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Add to get:
2(x-bar) = 69.6
---
x-bar = 34.8
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Cheers,
Stan H.
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