Question: Medical: Fat Babies. Modern medical practice tells us not to encourage babies to, become too fat. Is there a positive correlation between the weight x of a 1-yeat—old baby and the weight y of the mature adult (30 years old)? A random sample of medical files produced the following information for 14 females:

1. Draw a scatter diagram.
2. Find the equation of the least-squares line, and plot the line on the scatter diagram of part (a).
3. Find the correlation coefficient \(r\). Find the coefficient of determination \(r^{2}\). What percentage of variation in \(y\) is explained by the variation in \(x\) and the least squares model?
4. If a female baby weighs \(20 \mathrm{lb}\) at 1 year, what do you predict she will weigh at 30 years of age?

\(\Sigma x=300 ; \Sigma y=1775 ; \Sigma x^{2}=6572 ; \Sigma y^{2}=226,125 ; \Sigma x y=38,220\)

Price: $2.99

Solution: The downloadable solution consists of 4 pages
Deliverable: Word Document