In an Area of the Midwest, Records Were Kept on the Relationship

question 85

Multiple Choice

In an area of the Midwest, records were kept on the relationship between the rainfall (in inches) and the yield of wheat (bushels per acre) . Find the standard error of estimate, $\mathrm { Se } ,$ , given that ? = 4.379x + 4.267. $$\begin{array} { l | l | l | l | l | l | l | l | l | l | } \text { Rain fall (in inches) , } \mathrm { x } & 10.5 & 8.8 & 13.4 & 12.5 & 18.8 & 10.3 & 7.0 & 15.6 & 16.0 \\\hline \text { Yield (bushels per acre) , y } & 50.5 & 46.2 & 58.8 & 59.0 & 82.4 & 49.2 & 31.9 & 76.0 & 78.8\end{array}$$

• A)3.529
• B)4.759
• C)2.813
• D)1.332