Which of the following would not allow conclusions to be made about a population?
A) Using a random sample.
B) Using a random sample, but not randomly assigning treatments.
C) Using a volunteer sample, but randomly assigning treatments.
D) Measuring the whole population.

Question

Quizplus · Accepted Answer

Randomly assigning treatments in a volunteer sample does not ensure the sample is representative of the population, as the sample may be biased towards individuals with a particular interest or characteristic.

Which of the Following Would Not Allow Conclusions to Be