The Eastern Washington County School Corporation Is Interested in Comparing

The Eastern Washington County School Corporation is interested in comparing educational performance at four elementary schools and has hired you to prepare a DEA model to do so.After detailed conversations with the corporation administrative staff and the building principals,you have isolated the following input and output $$\begin{array} { l l } \text { Input Measures } & \text { Output Measures } \\\hline \text { Average classroom size } & \text { Percent of children in remedial classes } \\\text { Percent of students on reduced price lunch } & \text { Average first grade score on standard test } \\\text { Average number of parent volunteer hours per week } & \text { Average fifth grade score on standard test }\end{array}$$ Data is collected for each school on each measure $$\begin{array} { l | c c c c } & { \quad\quad\quad\quad\text { School } } \\& \text { Archer } & \text { Hayes } & \text { Ralston } & \text { Creekside } \\\hline \text { Inputs } & & & & \\\text { Classroom size } & 21 & 28 & 32 & 20 \\\text { \% reduced lunch } & 10 & 8 & 25 & 2 \\\text { Avg. vol. hours } & 30 & 46 & 15 & 64 \\\text { Outputs } & & & & \\\hline \text { \% remediation } & 15 & 12 & 19 & 3 \\\text { 1st grade score } & 83 & 84 & 62 & 85 \\\text { 5th grade score } & 76 & 72 & 53 & 79\end{array}$$ Develop the DEA model that would evaluate the efficiency of Ralston Elementary School.