An investigation into the relationship between an adolescent mother's age x in years and the birth weight y of her baby in grams yielded the regression equation y= - 1163.45 + 245.15x as well as r = .88369, r2= .78091, SSE = 337212.45, and s= 205.30844 1) What is the predicted birth weight for a baby brn to a 17 year old woman? 2) What is the propotion of the variability in the weights of babies born to adolescent mothers that is accounted for by the mother's age? 3) For every additional year in the mother's age that mean birth weight of the baby? (a) increases by about 245g (b) decreases by about 245g (c) increases by about 1163g (d) increases by about 1163g (e) changes by an amount that cannot be determined from the information given.
An investigation into the relationship between an adolescent mother's age x in years and the birth weight y of her baby in grams yielded the regression equation y= - 1163.45 + 245.15x as well as r = .88369, r2= .78091, SSE = 337212.45, and s= 205.30844
1) What is the predicted birth weight for a baby brn to a 17 year old woman?
2) What is the propotion of the variability in the weights of babies born to adolescent mothers that is accounted for by the mother's age?
3) For every additional year in the mother's age that
(a) increases by about 245g
(b) decreases by about 245g
(c) increases by about 1163g
(d) increases by about 1163g
(e) changes by an amount that cannot be determined from the information given.
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