Question

An experiment is to be conducted using environmentally safe peppermint oil to study the effectiveness of deterring mice from infesting dwellings. In one

dwelling, the peppermint oil will be dispersed via essential oil diffuser; in the other dwelling it will be placed on areas where mice could enter the dwelling. The
researchers will determine the adverse reactions of the mice to the peppermint oil by counting the number of mice in each dwelling after one week. There are
20 mice available for the experiment, and the researchers will use 10 mice for each dwelling. For this experiment, identify the treatments, experimental unit, and response variable.

Treatments: how the peppermint oil is dispersed
Experimental unit: number of mice in the dwellings
Response variable: mice

Treatments: number of mice in the dwellings
Experimental unit: mice
Response variable: how the peppermint oil is dispersed

Treatments: mice
Experimental unit: how the peppermint oil is dispersed
Response variable: number of mice in the dwellings

Treatments: mice
Experimental unit: number of mice in the dwellings
Response variable: how the peppermint oil is dispersed

Treatments: how the peppermint oil is dispersed
Experimental unit: mice
Response variable: number of mice in the dwellings

Answer 1

Treatments: how the peppermint oil is dispersed

Experimental unit: mice

Response variable: number of mice in the dwellings

Explanation:

Answer 2

Option E is correct.

- Treatments: how the peppermint oil is dispersed

- Experimental unit: mice

- Response variable: number of mice in the dwellings

Explanation:

The treatments in this type of statistical experiment refers to the part of the experiment that is tweaked, controlled or varied in the cases being studied. In this experiment, the method of essential oil dispersal is what is varied in the two experimental cases of this study.

Experimental Unit refers to the subject matters, who are participants in the experiment. They are the ones that the effect of the treatments is tested upon.

For this study, the experimental units are the mice subjected to either of the two methods of peppermint oil dispersal.

The response variable is how the experimental units (participants) respond to the treatments (experimental tweaks). Or how the tweaks manifest observable results in the participants of the study. For this study, the effect of the tweaks in the mice is shown in the number of mice that remain in each dwelling (where the two methods of peppermint oil dispersal have been implemented). Hence, the response variable is the number of mice in each dwelling.

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