If the observed and expected results of some experiment are not identical,then the null hypothesis (no differences)should be ______.
A)rejected
B)rejected only if the discrepancy cannot be attributed to chance
C)accepted
D)accepted only if experiment is repeated

Question

Quizplus · Accepted Answer

The null hypothesis should only be rejected if the observed results cannot be attributed to chance. This means that there is a likelihood that the observed differences can occur by chance, and the null hypothesis should not be rejected unless there is a significant difference that is unlikely to have occurred by chance. Therefore, the best choice is B.

If the Observed and Expected Results of Some Experiment Are