Analysis of the data from 25 mothers indicates that an infant's birth weight (g), y , can be estimated by a mother's weight (kg), x , using the regression equation y=31 x+1501 . If a mother's weight is 70 kg , the infant's birth weight can be estimated as ________ g .
A) 48,701
B) 1718
C) 46
D) 3671

Question

Analysis of the data from 25 mothers indicates that an infant's birth weight (g),  y , can be estimated by a mother's weight  (kg), x , using the regression equation  y=31 x+1501 .  If a mother's weight is  70 kg , the infant's birth weight can be estimated as  ________ g .
A) 48,701
B) 1718
C) 46
D) 3671

Quizplus · Accepted Answer

Using the regression equation $y = 31x + 1501$, for a mother's weight of 70 kg, the infant's birth weight can be estimated as $y = 31(70) + 1501 = 2170 + 1501 = 3671$ grams.

Analysis of the Data from 25 Mothers Indicates That an Infant's