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:

	95% Confidence Interval		95% Prediction Interval
Predicted	Lower	Upper	Lower	Upper	Leverage
15,981.1195	15,429.6600	16,532.5791	14,956.5802	17,005.6589	.4079

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 = 12,610.25) 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 (Click to select)abovebelow the (Click to select)lower limitupper limit of the interval; this y-value is (Click to select)Unusually HighnormalUnusually Low.

Answer 1

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