Question

What are the experimental units (subjects)? How many treatments are there? What is the response variable?

A) Experimental units: Jalapeno peppers, Treatments: Watering schedule and fertilizer type, Response variable: Heat rating.
B) Experimental units: Plots, Treatments: Watering schedule and fertilizer type, Response variable: Soil quality.
C) Experimental units: Soil, Treatments: Watering schedule and fertilizer type, Response variable: Pepper size.
D) Experimental units: Fertilizer types, Treatments: Jalapeno peppers, Response variable: Plot location.

Answer 1

In a biology-related experimental design, college students are the experimental units, the size of the tableware is the explanatory variable, and the amount of food consumed is the response variable. The treatment involves using tableware that is reduced in size by 20 percent.

Step-by-step explanation:

In experimental design within a biological context, the experimental units are the individual units the experiment is performed on. In this case, based on the context, the correct answer should include college students as experimental units, the size of the tableware as the explanatory variable, and the amount of food eaten as the response variable. Treatments refer to the different conditions applied to experimental units, such as the tableware size in this study.

The population is the entire group being studied, while the sample represents a subset of the population that is actually participating in the experiment. The treatment in this study is the 20 percent smaller tableware, and the response variable being measured is the amount of food the college students consume.