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).Test the null hypothesis of no interaction between variety and soil conditions at a significance level of 0.05. 
Definitions:
Cognitive Aptitude
The ability to process information, learn quickly, and solve problems, often considered a measure of intellectual capabilities.
Perceptive Set
A psychological framework that influences observation and interpretation, predisposing an individual to perceive things in a certain way.
Empathy Capacity
The ability of an individual to understand and share the feelings of another person.
Attributional Style
The way in which one is disposed toward interpreting outcomes (successes or failures), as in tending to place blame or responsibility on oneself or on external factors.
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