null hypothesis
What null hypothesis means in Biology A-Level, as defined for AQA, OCR.
Definitions of null hypothesis
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Reference: OCR
A statement that there is no significant difference between observed and expected results, written before any calculation so the conclusion has a clear basis.
There is no significant difference between observed and expected results.
Topics that use null hypothesis
- Inheritance (A-level only) (AQA A-Level)
- Patterns of inheritance (OCR A-Level)
Related terms
- critical value
- degrees of freedom
- epistasis
- Phenotype
- sex linkage
- allele
- Allele frequencies
- Alleles, genotypes and phenotypes
Using null hypothesis in the exam
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