QUESTION 3

For this question, use the data to obtain a least squares fit that relates selling price (dependent variable) to taxes paid (independent variable).

What is the estimate of thevalue of the y-intercept? Round your answer to four significant digits.

Sale Price/1000	Taxes/1000
25.9	4.9176
29.5	5.0208
27.9	4.5429
25.9	4.5573
29.9	5.0597
29.9	3.891
30.9	5.898
28.9	5.6039
35.9	5.8282
31.5	5.3003
31	6.2712
30.9	5.9592
30	5.05
36.9	8.2464
41.9	6.6969
40.5	7.7841
43.9	9.0384
37.5	5.9894
37.9	7.5422
44.5	8.7951
37.9	6.0831
38.9	8.3607
36.9	8.14
45.8	9.1416

QUESTION 4

For your regression line for the data above, what is the estimate of thevalue of the slope? Round your answer to three significant digits.

QUESTION 5

What is the estimate of²? Round your answer to three significant digits.

QUESTION 6

What is the mean selling price given that the taxes paid are x=7.50? Round your answer to four significant digits.

QUESTION 7

When x=5.8980, what is the residual? Round your answer to three significant digits.