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Model Vallidation.pdf
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\begin{tabular}{|c|c|}
\hline\( t \) & \( W(t) \) \\
\hline 0 & 3.2 \\
\hline 1 & 4.2 \\
\hline 2 & 5.1 \\
\hline 3 & 5.8 \\
\hline 4 & 6.4 \\
\hline
\end{tabular}
ple 2: The weight of newborn babies can be modeled by a linear function for the first four months after birth. ted values for the weight \( W(t) \), in kilograms, of a particular newborn baby are given in the table above, where resents the number of months since birth.
se the regression capabilities on your calculator to find a linear model of the form \( y=a+b x \) for the weight (in of this particular baby \( x \) months after birth.
Use the model found in part a to prediet the weight (in kg ) of this baby 2.5 months affer birth.
The actual weight of this baby 2.5 months after birth was 5.5 kilograms. What is the residual for this weight? Did our rodel underestimate or overestimate the weight of this baby 2.5 months after birth?
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