The following data shows the yield,in bushels per acre,categorized according to three varieties of corn and three different soil conditions (Plot 1,Plot 2,and Plot 3).Assume that yields are not affected by an interaction between variety and soil conditions,and test the null hypothesis that variety has no effect on yield and that soil conditions have no effect on yield.Use a 0.05 significance level. 
Definitions:
Labor Productivity
A measure of economic performance that calculates the amount of goods and services produced per unit of labor.
Nominal Wages
Refers to the actual money paid to workers, not adjusted for inflation.
Price Level
The general average of the prices of goods and services in an economy at a given time.
Real Wages
Wages that have been adjusted for inflation, reflecting the actual purchasing power of the income received by workers.
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