or
Read the following description of an experiment.
The Sunshine Paint Company developed a new paint formula and wants to see how it lasts. The company has an employee conduct a study to determine the quality of the paint. The study uses a special outdoor wall divided into equal sections for different samples.
The employee randomly chooses 5 sections to paint with the new paint and 5 sections to paint with the old paint. A year later, she measures the color shift of the paint.
Is this experiment statistically well designed?
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