\documentclass[11pt]{book}

\renewcommand{\baselinestretch}{1.2}
\pagestyle{plain}
\usepackage{latexsym}
\usepackage{graphicx, bm}
%\usepackage{morefloats}
\usepackage{lscape} %for landscape mode of tables
%\usepackage{rotating}
\usepackage{multirow}

\setlength{\oddsidemargin}{-0.1in}
\setlength{\evensidemargin}{-0.1in}

\setlength{\topmargin}{-0.5in}
\setlength{\textwidth}{7in}
\setlength{\textheight}{9.1in}
\setlength{\parindent}{0.25in}
\setlength{\parskip}{0.05in}
\baselineskip=24pt
%\textwidth 6.6in \topmargin -0.5in \textheight 9.0in

%%%%%%%%%%%%%%%%%BOLD FONTS OF SYMBOLS%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%1%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\bzero}{\bm 0}
\newcommand{\bone}{\bm 1}
\newcommand{\bp}{\bm p}
\newcommand{\br}{\bm r}
\newcommand{\by}{\bm y}
\newcommand{\bY}{\bm Y}
\newcommand{\Be}{\bm e}
\newcommand{\bX}{\bm X}


%Greak letters
\newcommand{\balpha}{\bm \alpha}
\newcommand{\bbeta}{\bm \beta}
\newcommand{\bgamma}{\bm \gamma}
\newcommand{\bxi}{\bm \xi}
\newcommand{\bepsilon}{\bm \epsilon}
\newcommand{\blambda}{\bm \lambda}
\newcommand{\bmu}{\bm \mu}
\newcommand{\bdelta}{\bm \delta}

\newcommand{\btheta}{\bm \theta}
\newcommand{\bdeta}{\bm \eta}
\newcommand{\bsigma}{\bm \sigma}
\newcommand{\bphi}{\bm \phi}
\newcommand{\bpsi}{\bm \psi} %bold \Psi
\newcommand{\brho}{\bm \rho}

\newcommand{\bPhi}{\bm \Phi} %bold \Phi
\newcommand{\bSigma}{\bm \Sigma} %bold \Sigma
\newcommand{\bPsi}{\bm \Psi} %bold \Psi
\newcommand{\bGamma}{\bm \Gamma}
\newcommand{\bXi}{\bm \Xi}

\newcommand{\bLambda}{\bm \Lambda}
\newcommand{\bDelta}{\bm \Delta}
\newcommand{\bTheta}{\bm \Theta}
\newcommand{\bRho}{\bm \Rho}

%%%%%%%%%%%%%%%%%MATH FORMULAS%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%2%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\newcommand{\betahat}{\hat{\beta}}

\newcommand{\comb}[2]{\left(\begin{array}{c}#1\\#2\end{array}\right)}

\newcommand{\dev}[2]{\frac{\partial #1}{\partial #2}}

\newcommand{\fracs}[1]{\frac{1}{#1}} %simple fraction: 1 over #1
\newcommand{\gives}{\Rightarrow}
\newcommand{\ifff}{\Leftrightarrow}
\newcommand{\inv}{^{-1}}

\newcommand{\matrx}[2]{\left[\begin{array}{#1}#2\end{array}\right]}
\newcommand{\mubar}{\bar{\mu}}
\newcommand{\muhat}{\hat{\mu}}

\newcommand{\norm}[1]{\left\|#1\right\|}
\newcommand{\noo}{\nonumber\\}
\newcommand{\no}{\nonumber}

\newcommand{\onehalf}{\frac{1}{2}}

\newcommand{\segfun}[1]{\left\{\begin{array}{cc}#1\end{array}\right.}
\newcommand{\sigmahat}{\hat{\sigma}}

\newcommand{\thetabar}{\bar{\theta}}
\newcommand{\thetahat}{\hat{\theta}}

\newcommand{\ybar}{\bar{y}}

%%%%%%%%%%%%%%%%%EDITING FORMAT%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%3%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\newcommand{\beq}{\begin{eqnarray}}
\newcommand{\eeq}{\end{eqnarray}}
\newcommand{\bi}{\begin{itemize}}
\newcommand{\ei}{\end{itemize}}
\renewcommand{\i}{\item}
\newcommand{\be}{\begin{enumerate}}
\newcommand{\ee}{\end{enumerate}}
%%%%%%%%%%%%%%%%%END OF NEW COMMANDS%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%

\begin{document}
\include{intro}
\include{hierarchicalNormalNormal}
\end{document}