The following data were used in a regression study. Observation x i y i Observation x i y i 1 2 4 6 7 6 2 3 5 7 7 9 3 4 4 8 8 5 4 5 6 9 9 11 5 7 4 a. Develop an estimated regression equation for these...

The following data were used in a regression study.

a. Develop an estimated regression equation for these data.

b. Construct a plot of the residuals. Do the assumptions about the error term seem to be satisfied?