Answer
(a) Linear equation for the line is: $y= 0.019x+0.305$
(b) Regression line is shown on the image below. The line is suitable for the model.
(c) The y-intercept represents the percentage of mice that develop lung tumors with no exposure to asbestos.
Work Step by Step
(a) Inputing the data provided in a regression line calculator we will get:
$m = 0.01879 \approx 0.019$
$b = 0.3048 \approx 0.305$
$y = 0.019x + 0.305$
(b) The regression line is shown on the image. As you can see, the line is reasonably suitable for the model.
(c) The y-intercept is when x=0, which in this case means exposure to 0 asbestos fibers per mL. Thus, it is the percent of mice that develop lung tumors without exposure to asbestos.
