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A hypothesis test always sets up how many competing hypotheses?
ATwo of them
BOne of them
CThree of them
DFour of them
Answer & Solution
Correct answer: A. Two of them
1. A test compares one claim about the population against its rival.
2. They are called the null hypothesis and the alternative hypothesis.
3. The data are then used to decide between them.
4. A single hypothesis on its own could never be rejected in favour of anything.
_Source: OpenStax Introductory Statistics 2e (CC BY 4.0), Ch 9 'Hypothesis Testing with One Sample', sections 9.1-9.6_
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