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Chapter 7: Q. 2.15 (page 490)

An agronomist wants to test three different types of fertilizer (A, B, and C) on the yield of a new variety of wheat. The yield will be measured in bushels per acre. Six 1- acre plots of land were randomly assigned to each of the three fertilizers. The treatment, experimental unit, and response variable are, respectively,

a. a specific fertilizer, bushels per acre, a plot of land.

b. variety of wheat, bushels per acre, a specific fertilizer.

c. variety of wheat, a plot of land, wheat yield.

d. a specific fertilizer, a plot of land, wheat yield.

e. a specific fertilizer, the agronomist, wheat yield.

Short Answer

Expert verified

Option (d) A specific fertilizer, the agronomist, wheat yield is correct.

Step by step solution

01

Given information

An agronomic wants to see how three different fertiliser kinds (A, B, and C) affect the yield of a new wheat variety. Bushels per acre will be used to calculate the yield. Each of the three fertilisers was randomly assigned to six 1-acre patches of land.

02

Explanation for correct option

Land as an experimental unit

Fertilizer is used as a treatment.

Bushels per Acre is a response variable.

The experimental unit, treatment, and response variable are all defined in this way.

Factor of interest in treatment

The objects in the experiment are the measurements taken from the response variable, which is a numerical value.

As a result, the best solution is (d)

03

Explanation for incorrect option

(a)The treatment, experimental unit, and response variable are not respectively, a specific fertilizer, bushels per acre, a plot of land.

(b)The treatment, experimental unit, and response variable are not respectively, variety of wheat, bushels per acre, a specific fertilizer .

(c) The treatment, experimental unit, and response variable are not respectively, variety of wheat, a plot of land, wheat yield.

(e) The treatment, experimental unit, and response variable are not respectively, a specific fertilizer, the agronomist, wheat yield .

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