The null hypothesis always refers to the __________, whereas the research hypothesis always refers to the _______________.
A) mean, standard deviation
B) group differences, group similarities
C) sample, population
D) population, sample

Question

Quizplus · Accepted Answer

The null hypothesis typically states that there is no effect or no difference, and it refers to the population parameters. The research hypothesis (or alternative hypothesis) suggests there is an effect or a difference, and it is about the sample drawn from the population, aiming to infer back to the population.

The Null Hypothesis Always Refers to the __________, Whereas the Research