http://www.commres.net/ 2026-04-17T08:22:54+00:00 http://www.commres.net/ http://www.commres.net/_media/wiki/logo.png text/html 2023-06-06T17:49:18+00:00 Anonymous (anonymous@undisclosed.example.com) http://www.commres.net/interaction_effects_in_regression_analysis/answer_ex2?rev=1686073758&do=diff > summary(m1) Call: lm(formula = read ~ math) Residuals: Min 1Q Median 3Q Max -17.2392 -4.8701 -0.3633 4.6803 23.5592 Coefficients: Estimate Std. Error t value Pr(>|t|) (Intercept) 14.07254 3.11582 4.516 1.08e-05 *** math 0.72481 0.05827 12.438 < 2e-16 *** --- Signif. codes: 0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1 Residual standard error: 7.701 on 198 degrees of freedom Multiple R-squared: 0.4386, Adjusted R-squared: …