The following data is looking at how long it takes to get to work. let x = commuting

The following data is looking at how long it takes to get to work. let x = commuting distance (miles) and y = commuting time (minutes) x 15 16 17 18 19 20 y 42 35 45 42 49 46

a. give a scatterplot of this data and comment on the direction, form and strength of this relationship.
b. determine the least-squares estimate equation for this data set.
c. give the r2, comment on what that means.
d. give the residual plot based on the least-squares estimate equation.
e. test if this least-squares estimate equation specify a useful relationship between commuting distance and commuting time.