The management of a manufacturer of electric motors, submitted the accompanying data in its annual stockholders report. The following table shows the net sales (in millions of dollars) during the 5...

Hi there,

I just need help with part C of this question.

Extracted text: The management of a manufacturer of electric motors, submitted the accompanying data in its annual stockholders report. The following table shows the net sales (in millions of dollars) during the 5 years that have elapsed since the new management team took over. Year, x 1 2 3 4 5 Net Sales, y 428 442 455 463 474 (The first year the firm operated under the new management corresponds to the time period x = 1, and the four subsequent years correspond to x = 2, 3, 4, and 5.) (a) Determine the equation of the least-squares line for these data. y = 11.3x + 418.5 (b) Draw a scatter diagram and the least-squares line for these data. y y 500- 500- 480 480 460- 460 440 440 420 420 2 3 4. 6 3 4 5 y y 500| 500- 480 480 460 460 440 440 420 420 X 1 3 6 1 2 3 4 (c) Use the result obtained in part (a) to predict the net sales for the upcoming year.