Dan Haynes Was Hired on August 1 to Train Personnel

Short Answer

Dan Haynes was hired on August 1 to train personnel to work more efficiently. Production (in units) for the months before and after his arrival are as follows: $$\begin{array} { l l l l } \text { Before } && { \text { After } } \\\hline \text { May } & 28,600 & \text { August } & 28,900 \\\text { June } & 27,900 & \text { September } & 29,600 \\\text { July } & 28,400 & \text { October } & 31,200\end{array}$$ Use the means of each table to calculate the % increase in production attributable to better training. (Round to the nearest tenth of a percent)