Compute the regression equation and standard error.
From the data in Discussion I (reproduced here), compute the regression equation for predicting the percentage of births of infants weighing under 2500 grams (Y) on the basis of fertility rate for females whose ages are <17 or >35 years of age (X_{1}). (X_{1} is known as the "high risk fertility rate.")
a. compute the standard error of estimate for the regression equation.
b. What proportion of birth weights is predicted from a fertility birth rate for females age 40?
c. How would your knowledge of regression contribute to your understanding of the behavioural outcomes of low birth weight?