Mathematics A-Level
Two-tailed test
What Two-tailed test means in Mathematics A-Level, as defined for AQA.
Definition of Two-tailed test
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Reference: AQA
A test with critical regions in both tails because H₁ states that the parameter is not equal to the stated value.
Topics that use Two-tailed test
- O: Statistical hypothesis testing (AQA A-Level)
Related terms
- Binomial distribution
- binomial hypothesis testing
- Correlation interpretation
- critical region
- Hypothesis testing
- Normal hypothesis testing
- Null hypothesis (H₀)
- One-tailed and two-tailed tests
Using Two-tailed test in the exam
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