Question: Answer Questions47 through 52 using the following data regarding maternal smoking and infant birth weight.(X,X 2 , Y,Y 2 , and XY have already been
Answer Questions47 through 52 using 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)X2Infant Birth Weight (Y)Y2XY
247.556.2515.0
6367.251.8443.2
101006.947.6169.0
121446.238.4474.4
X=30X2=284Y=27.8Y2=194.14XY=201.6
What is the regression equation for this data?
= 7.85X + (-0.12)
= 8.33X + (-2.30)
= 4.44X + 8.33
= -0.12X + 7.85
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