Q$12$ The following is a portion of a classic data met

called the "pilot plot data" in Pitting Equations to

Data by Daniel and Wood, published in $1071.$ The

response $y$ in the acid content of material produced by

titration, whereas the regressor $x$ in the organic acid

content produced by extraction and welghing.

$($a$)$ Plot the data; does it appear that a simple linear

regrension will be a nuitable modet?

$($b$)$ Pit a aimple linear recrenaion; eatimate a slope and

intercept.

$($c$)$ Graph the regression line on the plot in $($a$).$