Question

Suppose you are interested in comparing brand A interior latex paint to brand B interior latex paint. Design an experiment to determine which paint is better for painting bathroomsbathrooms. Choose the best design for this experiment.

A. Completely randomized design because experimental units are paired up and there are only two levels of treatment.
B. ​Matched-pairs design because experimental units are paired up and there are only two levels of treatment.

Answer 1

b) Matched-pairs design

Explanation:

The matched-pairs design is used when the experiments has two treatment conditions and subjects can grouped into pairs.

In this case, we can take the total numbers of bathrooms and split them into two groups, the first group will get the A interior latex paint (treatment 1) and the second one will get the B interior latex paint (treatment 2).