Chapter 4.2, Problem 5AYU

For the data set

1. a. Draw a scatter diagram. Comment on the type of relation that appears to exist between x and y.
2. b. Given that $\bar{x}=3.6667$, s_x = 2.4221, $\bar{y}=3.9333$, s_y = 1.8239, and r = −0.9477, determine the least-squares regression line.
3. c. Graph the least-squares regression line on the scatter diagram drawn in part (a).