A null hypothesis is one which states that

AThere is no difference or relationship between the variables ✓ Correct

BIt is exactly the same as the research hypothesis

CIt is subjective in nature

DThere is a definite difference between the variables

Correct answer: (A) There is no difference or relationship between the variables

Explanation

A null hypothesis asserts that no difference or relationship exists between the variables in the population.

It is the statement of no effect that a researcher actually puts to a statistical test.

Claiming it is identical to the research hypothesis reverses their roles, since the two are logical opposites.

Describing it as subjective in nature is wrong, because it is a precise, testable numerical statement.

Stating a definite difference between variables describes the alternative or research hypothesis instead.

Rejecting the null hypothesis provides indirect support for the alternative hypothesis.

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