The Following Data Shows the Yield, in Bushels Per Acre

question 76

Essay

The following data shows the yield, in bushels per acre, categorized according to three varieties of corn and
three different soil conditions. Assume that yields are not affected by an interaction between variety and soil
conditions, and test the null hypothesis that soil conditions have no effect on yield. Use a 0.05 significance level. $$\begin{array} { c c c c } & \text { Plot 1 } & \text { Plot 2 } & \text { Plot 3 } \\\text { Variety 1 } & 156,167 , & 162,160 , & 145,151 , \\& 170,162 & 169,168 & 148,155 \\\text { Variety 2 } & 172,176 , & 179,186 , & 161,162 , \\& 166,179 & 160,176 & 165,170 \\\text { Variety 3 } & 175,157 , & 178,170 , & 169,165 , \\& 179,178 & 172,174 & 170,169\end{array}$$

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Definitions:

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A toxin that specifically targets neural tissues, potentially causing damage to the nervous system, which includes both central and peripheral components.

Physiological pH

The specific value of pH (around 7.4) within biological systems where the internal environment is regulated to maintain stable and optimal conditions for cellular processes.

Sulfa Drugs

A group of synthetic antibacterial agents that contain the sulfonamide group and are used to treat bacterial infections.

Folic Acid

A B-vitamin that is essential in cell growth and development, critical for pregnant women to prevent neural tube defects in the fetus.