786- .2303517 totwrk (132.831) (.04560) Source |SS dfMSNumber of obs =100 ————- —————————— F(1,98) =25.51 Model |4213875.571 4213875.57Prob > F=0.0000 Residual |16189262.6 98165196.557R-squared=0.2065 ————- ——————————Adj R-squared =0.1984 Total |20403138.299206092.305Root MSE=406.44 Consider a person with totwrk = 2770 (hours per year). Find a 90% prediction interval for her E(sleep), using the simple model results (b) and = (X’X)-1= 17644.149-5.7677294 -5.7677294.00208019
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