A Farmer Wishes to Test the Effects of a New

question 48

Multiple Choice

A farmer wishes to test the effects of a new fertilizer on her potato yield. She has four equal-sized plots ofland-- one with sandy soil, one with rocky soil, one with clay-rich soil, and one with average soil. She divideseach of the four plots into three equal-sized portions and randomly labels them A, B, and C. The four Aportions of land are treated with her old fertilizer. The four B portions are treated with the new fertilizer, andthe four Cʹs are treated with no fertilizer. At harvest time, the potato yield is recorded for each section of land.What is the response variable in this experiment?

• A) the potato yield recorded for each section of land
• B) the type of fertilizer (old, new, or none)
• C) the section of land (A, B, or C)
• D) the four types of soil

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Definitions:

Neutrons

Subatomic particles found in the nucleus of an atom, having no electric charge and a mass about equal to that of protons.

Protons

Positively charged subatomic particles found within the nucleus of an atom, contributing to the atom's charge and atomic number.

Electrons

Subatomic particles with a negative electrical charge, found in all atoms and acting as the primary carriers of electricity in solids.

Periodic Table

A structured table of chemical elements, sorted by atomic number, electron configuration, and repetitive chemical characteristics.