Math 111 test 3 sample 110922 1-2. Linear Regression problem. Year (x) 1900 1910 1920 1930 1940 Profit (y) 14 11 16 18 21 X XA y you lyn - you l 0 1 2 3 4 (1) since the x data "jumps" in steps of 10, I've filled in the x data, fill in x^, y, y^ next (2) Using 2-variable stat, find: 12 ) 20 (b ) 2." (0) 217 (3) working in adjusted units, the slope of the best fit line = (c)/(a), the y-intercept = 0 (4) fill in the last 3 columns of the table (5) Compute D directly. (6) compute r using the formula (7) D = (1 -12 ) (8) using linear regression on your calculator, find the slope of the best fit line and r (9) plot the data and regression line on the graph