Please show work of how did you get there. Thanks!

For the following 12 periods of historical data, compute a simple linear regression equation and develop a forecast for the next four periods Click the icon to view the historical data. The simple linear regression line is Ft=+xi. (Enter your responses rounded to two decimal places.) \begin{tabular}{cc} \hline Period(x) & at(y) \\ \hline 1 & 114 \\ 2 & 118 \\ 3 & 106 \\ 4 & 117 \\ 5 & 130 \\ 6 & 125 \\ 7 & 155 \\ 8 & 137 \\ 9 & 150 \\ 10 & 128 \\ 11 & 165 \\ 12 & 171 \\ \hline \end{tabular}