In working further with the problem of exercise 4, statisticians suggested the use of the following curvilinear estimated regression equation y b0 b1x b2x2 a Use the data of exercise 4 to estimate the parameters of this estimated regression equation b Use 01 to test for a significant relationship c...

a The Minitab output is shown below The regression equation is Y 433 374 X ...

In working further with the problem of exercise 4, statisticians suggested the use of the following curvilinear

Question:

In working further with the problem of exercise 4, statisticians suggested the use of the following curvilinear estimated regression equation.
yˆ = b0 + b1x + b2x2
a. Use the data of exercise 4 to estimate the parameters of this estimated regression equation.
b. Use α = .01 to test for a significant relationship.
c. Estimate the traffic flow in vehicles per hour at a speed of 38 miles per hour.