Yates Corp Required:
(A

Yates Corp.wants to develop a cost equation for its administrative costs.The controller believes the appropriate cost driver is units produced.Last year's data are presented below:
$$\begin{array} { | l | r | r | } \hline \text { Month } & \begin{array} { r } \text { Units } \\\text { produced }\end{array} & \begin{array} { r } \text { Aoministrative } \\\text { Costs }\end{array} \\\hline \text { January } & 32,500 & \$ 24,288 \\\hline \text { February } & 37,700 & 27,720 \\\hline \text { March } & 24,700 & 17,820 \\\hline \text { April } & 40,300 & 30,360 \\\hline \text { May } & 49,400 & 37,290 \\\hline \text { June } & 42,900 & 29,040 \\\hline \text { July } & 53,300 & 32,670 \\\hline \text { August } & 45,500 & 30,030 \\\hline \text { September } & 26,000 & 20,460 \\\hline \text { October } & 48,100 & 34,320 \\\hline \text { November } & 61,100 & 40,920 \\\hline \text { December } & 54,600 & 36,630 \\\hline \text { Total } & 516,100 & \$ 361,548 \\\hline \text { Average } & 43,008 & \$ 30,129 \\\hline\end{array}$$

Required:
(a. )What is the equation for administrative costs using the high-low method?
(b. )Prepare an estimate of administrative costs for a month when 30,000 units are produced.