Question

Choice 4 is incorrect.

Bob thinks there is something wrong with Excel's fitted regression. What do you say? 700 600 500 400 0.8774x + 154.61 R2 0.2284 300 200 100 50 100 150 200 0 The R looks a little high but otherwise it looks OK. The estimated equation is obviously incorrect. The relationship is linear, so the equation is credible Bob needs to increase his sample size to decide

Answer 1

answer is B. The estimated equation is obviously incorrect.

as in graph we can see that intercept is at 100 and the equation written here has intercept 154.61 hence estimated equation is wrong.