Concept explainers
a.
Calculate the expected count and contribution to the chi-square statistic for endurance athletes with the XX genotype.
Compare the calculated values with the result of computer output.
b.
Calculate the degrees of freedom for the test.
Compare the calculated value with the result of computer output.
c.
Identify the chi-square test statistic.
Identify the chi-square p-value.
Give conclusion to the test.
d.
Identify the cell that contributes the most to the chi-square statistic.
Check whether the observed count is greater than or less than the expected count for the identified cell.
e.
Identify the genotype that is most over-represented in sprinters.
Identify the genotype that is most over-represented in endurance athletes.
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