A Farmer Wishes to Test the Effects of a New

question 31

Multiple Choice

A farmer wishes to test the effects of a new fertilizer on her tomato 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 tomato yield is recorded for each section of land.Identify the experimental units.

• A) the tomato plants on the various plots of land
• B) the tomato yield at harvest time
• C) the three types of fertilizer
• D) the four types of soil

Understand the concept of z-scores and their calculation.

Differentiate between different probability distributions and identify situations where the normal distribution applies.

Apply the properties of the normal distribution to solve real-world problems.

Calculate and interpret z-values and percentages in the context of normal distribution.

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