12_Blood_grps

12_Blood_grps - r=f(O) 0.556 total 1 d.f. = genotypes -...

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Ho : Genotype frequencies for blood groups do not differ from H-W expectations. AA BB OO AB AO BO total obs 7 4 29 9 21 10 80 exp 6.05 2.28 24.75 7.43 24.48 15.02 80 d=(obs-exp) 0.95 1.72 4.25 1.58 -3.48 -5.02 d**2/exp 0.15 1.30 0.73 0.33 0.49 1.68 4.68 p=f(A) 0.275 q=f(B) 0.169
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Unformatted text preview: r=f(O) 0.556 total 1 d.f. = genotypes - alleles = 6 - 3 = 3 for Chi^2 = 4.68, 0.10 < p < 0.20 Retain Ho, and conclude that genotype frequencies of blood groups do not differ from H-W expectations...
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