Which assumption must be true in order to justify the use of hypothesis testing?
A) random sampling
B) interval-ratio level of measurement
C) very large samples
D) samples have been according to a strict application of the parameter

Question

Quizplus · Accepted Answer

Hypothesis testing is based on the assumption that the sample has been randomly selected from the population. If the sample is not random, then the results may be biased and hypothesis testing may not be appropriate.

Which Assumption Must Be True in Order to Justify the Use