The Following Data Shows the Yield, in Bushels Per Acre

Essay

The following data shows the yield, in bushels per acre, categorized according to three varieties of corn and three different soil conditions. Test the null hypothesis of no interaction between variety and soil conditions at a significance level of 0.05. $\begin{array}{llll} & \text { Plot 1 } & \text { Plot 2 } & \text { Plot 3 } \\\text { Variety 1 } & 156,167, & 162,160, & 145,151, \\& 170,162 & 169,168 & 148,155 \\\text { Variety 2 } & 172,176, & 179,186, & 161,162 \text {, } \\& 166,179 & 160,176 & 165,170 \\\text { Variety 3 } & 175,157, & 178,170, & 169,165, \\& 179,178 & 172,174 & 170,169\end{array}$