Baby weights The average gestational age time from conception to
Baby weights: The average gestational age (time from conception to birth) of a newborn infant is about 40 weeks. The following table presents the gestational age (in weeks) and corresponding mean birth weight (in pounds) for female infants born in Canada.
a. Compute the least-squares regression line for predicting the birth weight from the gestational age.
b. Compute the coefficient of determination.
c. Construct a residual plot. Does the relationship appear to be linear?
d. True or false: If the coefficient of determination is large, the relationship must be linear.
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