Question

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 one-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) a plot of land, bushels per acre, a specific fertilizer.
(c) random assignment, a plot of land, bushels per acre.
(d) a specific fertilizer, a plot of land, bushels per acre.
(e) a specific fertilizer, the agronomist, bushels per acre

Short answer

The correct answer is option (d) a specific fertilizer, a plot of land, bushels per acre.

Step-by-step solution

Given information

An agronomist wants to test three different types of fertilizer (A,B, and C) on a new variety of wheat. Six one-acre plots of land were randomly assigned to each of the three fertilizers.

Explanation

The provided information denotes that the fertilizer is the treatment because it is main factor of interest. Bushels per acre is the response variable because it is the value that is being gathered and land is the experimental unit.
Factor of interest Experimental Unit: The object is the measurements being collected from Response Variable. And the numerical values are being collected
Hence, the correct option is (d) a specific fertilizer, a plot of land, bushels per acre.