Compute and Interpret the Coefficient of Determination
-In a Study $\mathrm { R } ^ { 2 }$

question 170

Short Answer

Compute and Interpret the Coefficient of Determination
-In a study of feeding behavior, zoologists recorded the number of grunts of a warthog feeding by a lake in the 15 minute period following the addition of food. The data showing the weekly number of grunts and the age of the warthog (in days) are listed below. Find and interpret the value of $\mathrm { R } ^ { 2 }$ .
$\begin{array}{cc}\hline \text { Number of Grunts } & \text { Age (days) } \\\hline 82 & 117 \\60 & 133 \\31 & 147 \\36 & 152 \\55 & 159 \\32 & 166 \\54 & 175 \\9 & 181 \\12 & 187 \\\hline\end{array}$

---

Definitions:

Processing Department

A division within a company where raw materials are transformed into finished products through a series of operations or processes.

Equivalent Units

A concept used in manufacturing and product costing that represents a partial unit of production, making it easier to quantify and cost incomplete production.

Step-Down Method

An allocation method used in cost accounting to distribute overhead costs to various departments in a sequential order based on the level of service provided.

Service Department Costs

Costs incurred by departments that do not directly generate revenue, but support those that do.