\begin{knitrout}
\definecolor{shadecolor}{rgb}{0.969, 0.969, 0.969}\color{fgcolor}\begin{kframe}
\begin{alltt}
\hlkwd{coef}\hlstd{(}\hlkwd{summary}\hlstd{(}\hlkwd{lm}\hlstd{(BPSysAve}\hlopt{~}\hlstd{SmokeNow,}\hlkwc{data}\hlstd{=small.nhanes)))[}\hlnum{2}\hlstd{,]}
\end{alltt}
\begin{verbatim}
+      Estimate    Std. Error       t value      Pr(>|t|) 
+ -3.6793569602  0.9639505436 -3.8169561548  0.0001411118
\end{verbatim}
\end{kframe}
\end{knitrout}