The Triple A Construction Company renovates old homes in Albany. Over time, the company has found that its dollar volume of renovation work is dependent on the Albany area payroll. The figures for Triple As revenues and the amount of money earned by wage earners in Albany for the past six years are given in the following table:

Find the standard error of estimate in sale.

\begin{tabular}{|c|c|} \hline TripleASale(Y)($100,000s) & LocalPayroll(X)($100,000,000s) \\ \hline 4 & 3 \\ 5 & 6 \\ 3 & 4 \\ 4 & 5 \\ 3 & 3 \\ 2 & 4 \\ 4 & 6 \\ \hline \end{tabular}