# Use regression analysis to fit a linear trend model to the data set. a. What is the estimated…

Use
regression analysis to fit a linear trend model to the data set.

a. What is
the estimated regression function?

b. Interpret
the R2 value for your model.

c. Prepare a
line graph comparing the linear trend predictions against the original data.

d. What are
the forecasts for the next 2 years using this technique?

e. Fit a
quadratic trend model to these data. What is the estimated regression function?

f. Compare
the adjusted-R2 value for this model to that of the linear trend model. What is
implied by this comparison?

g. Prepare a
line graph comparing the quadratic trend
»

Use
regression analysis to fit a linear trend model to the data set.

a. What is
the estimated regression function?

b. Interpret
the R2 value for your model.

c. Prepare a
line graph comparing the linear trend predictions against the original data.

d. What are
the forecasts for the next 2 years using this technique?

e. Fit a
quadratic trend model to these data. What is the estimated regression function?

f. Compare
the adjusted-R2 value for this model to that of the linear trend model. What is
implied by this comparison?

g. Prepare a
line graph comparing the quadratic trend predictions against the original data.

h. What are
the forecasts for the next 2 years using this technique?

i. If you
had to choose between the linear and quadratic trend models, which would you
use? Why?

»