Unnecessary predictors
Wich predictor(s) should effectively be excluded?
Coefficients:
Estimate Std. Error t value Pr(>|t|)
(Intercept) 2.2561 0.5654 3.991 0.000117 ***
PRICE -2.6857 0.7921 -3.390 0.000959 ***
Price.lag 3.9920 0.7959 5.016 1.96e-06 ***
DISPLAY 0.4570 0.1279 3.572 0.000521 ***
Display.lag 0.5097 0.1180 4.319 3.36e-05 ***
COUPON 1.7531 0.1576 11.121 < 2e-16 ***
Coupon.lag -0.2098 0.1567 -1.339 0.183344
DISPLAYCOUPON 2.0087 0.2017 9.960 < 2e-16 ***
DisplayCoupon.lag 0.4489 0.2112 2.126 0.035695 *
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Building Response Models in R
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