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Answer Questions44through49using the following data regarding maternal smoking and infant birth weight.(X,X 2 , Y,Y 2 , and XY have already been calculated for you

Answer Questions44through49using the following data regarding maternal smoking and infant birth weight.(X,X2, Y,Y2,

and XY have already been calculated for you and are shown below.)

Cigarettes Per Day (X) X2 Infant Birth Weight (Y) Y2 XY

247.759.2915.4

6367.353.2943.8

9 816.947.6162.1

11 121 6.440.9670.4

X=28 X2=242Y=28.3Y2=201.15XY=191.7

What is the regression equation for this data?

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