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\documentclass[11pt]{article}\usepackage{graphicx,latexsym,amsfonts,amssymb,amsmath,verbatim,theapa,lscape,multirow,xcolor}\begin{document}\begin{table}[]\caption{\textbf{Table }Estimates of the Linear Mixed Effects Modelof Treatment Effects for the Buyer Prices}\vspace{2pt}\begin{tabular}{p{82pt}p{31pt}p{37pt}p{85pt}p{19pt}p{44pt}p{42pt}}\hline \multicolumn{7}{c} {\textit{{{\footnotesize Price$_{ij}$ -P$^{t}$=\begin{math}\mathrm{\mu}\end{math}+e$_{i}$+\begin{math}\beta{}\end{math}$_{1}$OCM$_{i}$+\begin{math}\beta{}\end{math}$_{2}$PCM$_{i}$+\begin{math}\beta{}\end{math}$_{3}$First$_{i}$+\begin{math}\beta{}\end{math}$_{4}$Second$_{i}$+\begin{math}\beta{}\end{math}$_{5}$OCM$_{i}$\begin{math}\times{}\end{math}First$_{i}$+\begin{math}\beta{}\end{math}$_{6}$OCM$_{i}$\begin{math}\times{}\end{math}Second$_{i}$+\begin{math}\beta{}\end{math}$_{7}$PCM$_{i}$\begin{math}\times{}\end{math}First$_{i}$+\begin{math}\beta{}\end{math}$_{8}$PCM$_{i}$\begin{math}\times{}\end{math}Second$_{i}$+ \begin{math}\epsilon{}\end{math}$_{ij}$, e$_{i}$\textasciitilde{} N(0,\begin{math}\sigma{}\end{math}$^{2}$$_{1}$)and\begin{math}\epsilon{}\end{math}$_{ij}$ \textasciitilde{}N(0,\begin{math}\sigma{}\end{math}$^{2}$$_{2,i}$)}} }} \\\hline&{\footnotesize Estimate}&{\footnotesize Std. Error}&{\footnotesize Degrees \!of \!Freedom}&{\footnotesize H$_{a}$}&{\footnotesize t-statistic}&{\footnotesize p-value}\\\hline\textit{{\footnotesize Off-peak}}&
Thanks in advance.