A test of 9 micro-size radar detectors included laboratory evaluation as well as the warning distance provided under various driving conditions. The following data represent over-the-hill trap warning distance, typical price, x-band lab sensitivity, and weight.

a. Determine the multiple regression equation and interpret the partial regression coefficients.
b. Determine the 95% confidence interval for the population partial regression coefficients, β₁, β₂, and β₃.
c. Interpret the coefficient of determination and the result of each significance test done by the computer.
d. Analyze the residuals. Does the analysis support the applicability of the multiple regression model to these data?

Transcribed Image Text:

Over-the-Hill Typical Laboratory Trap Warning Distance, y Price, Sensitivity, Weight, Detector X1 X2 Xз 108 dBm/cm? 0.675 miles $289 3.8 oz 2 0.660 295 110 6.1 0.640 240 108 5.8 0.560 103 249 6.6 0.540 260 107 6.0 200 108 0.640 5.8 0.540 199 109 5.9 0.645 220 108 5.8 112 9. 0.670 250 6.2