Question: In working further with the problem of exercise 4, statisticians suggested the use of the following curvilinear estimated regression equation. y = b0 + b1x

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.

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

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