<PRE><B>Question 675914</B>
98% confidence interval estimate for a population mean was computed to be (45.9, 60.5). Determine the mean of the sample, which was used to determine the interval estimate 
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Equations:
x-bar-E = 45.9
x-bar+E = 60.5
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Add to get: 
2(x-bar) = 106.4
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x-bar = 53.2

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Notice that x-bar is the average of 45.9 and 60.5.
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Cheers,
Stan H.
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