_____________ occur(s)when buyers from outside the test area come into the area to purchase the product being tested,thereby distorting the results of the experiment.
A)Most accurate results
B)Bias
C)Contamination
D)None of these

Question

Quizplus · Accepted Answer

Contamination occurs when there is external interference with the experimental conditions, which can lead to inaccurate results. In this case, the external interference is buyers from outside the test area purchasing the product being tested, which can skew the results.

_____________ Occur(s)when Buyers from Outside the Test Area Come into the Area