Past exam of the mathematics course of the University of Cambridge / 2025 / ii / Paper 2 / 5K / 1 / Solution

The displayed analysis of variance compares Model 2 with the unrestricted three-mean Model 1. It testswhich is precisely full dominance: once an $A$ allele is present, a second copy has no further effect. Under $H_0$,The p-value $0.01249$ rejects full dominance at the $5\%$ level, providing evidence that the heterozygote and $AA$ means differ.

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