A Farmer Has a 160 Acre Tract of Land That

question 39

Multiple Choice

A farmer has a 160 acre tract of land that he is planting in corn. He has heard about advances in fertilizertechnology that impacts yield. He divides his field into four sections and each section into four parts. He hasthree type of fertilizer to test and no fertilizer. He randomly selects a part of a section and then randomlyselects a type of fertilizer for that part of a section so that each section has all four applications applied to it.The yields in bushel per acres are given below. Test at α = 0.05 if there is a difference in yields. $$\begin{array} { | l | c | c | c | c | } \hline & \text { Field A } & \text { Field B } & \text { Field C } & \text { Field D } \\\hline \text { No fertilizer } & 5.7 & 10.4 & 7.3 & 9.0 \\\hline \text { Traditional } & 4.5 & 8.6 & 6.1 & 10.6 \\\hline \text { Liquid } & 4.1 & 6.3 & 5.8 & 7.2 \\\hline \text { Granular } & 2.6 & 7.2 & 4.6 & 8.7 \\\hline\end{array}$$

• A) Fertilizer does result in significantly different yields.
• B) Fertilizer does not result in significantly different yields.

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Definitions:

B Lymphocytes

A type of white blood cell that plays a critical role in the immune system by producing antibodies to fight infections.

Bacterial Infection

An infection caused by bacteria entering the body, multiplying, and causing a reaction in the body.

Immune System

The body's defense mechanism against pathogens, including bacteria, viruses, and other harmful entities, comprising organs, tissues, and cells.

NK Cells

Natural Killer cells, a type of white blood cell that plays a crucial role in the body's immune response by attacking and destroying cells that are infected or cancerous.