Consider a questionable hospital for which XRay = 56,194, BedDays = 14,077.88, a

Question

Consider a questionable hospital for which XRay = 56,194, BedDays = 14,077.88, and LengthStay = 6.89. A 95 percent prediction interval for the labor hours corresponding to this combination of values of the independent variables is given on the following MegaStat output: Find and report the prediction interval on the output. Then, use this interval to determine if the actual number of labor hours used by the questionable hospital (y = 17,207.31) is unusually low or high. (Report 95% P.I. values to 4 decimal place and y to 2 decimal places.) 95% P.I.: [] y = is of the interval: this y-value is

Explanation / Answer

Using the output given, the prediction interval is

95% PI : [ 14906.2361, 16886.2584 ]

y = 17207.31

Here y is greater than the upper limit of the interval ; this y value is unusually high.

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