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) About Me  (Show Source):
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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
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x-bar = 34.8
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Cheers,
Stan H.
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