\frametitle {Output of lm fit with interaction, cont'}
{\footnotesize
\begin{verbatim}
> anova(lm.int)
Analysis of Variance Table

Response: time
           Df  Sum Sq Mean Sq F value    Pr(>F)
temp        1  17.209  17.209  62.076 4.394e-06 ***
width       2 123.143  61.572 222.102 3.312e-10 ***
temp:width  2   5.701   2.851  10.283  0.002504 **
Residuals  12   3.327   0.277
---
Signif. codes:  0 ‘***’ 0.001 ‘**’ 0.01 ‘*’ 0.05 ‘.’ 0.1 ‘ ’ 1
\end{verbatim}
}