statistical tests 0.0 / 5 ? BiologyDNA, genetics and evolutionA2/A-levelOCR Created by: Emily250601Created on: 09-06-19 16:52 What does a chi-squared test test? if there is a significant difference between observed and expected results 1 of 5 how do you calculate degrees of freedom for a chi-squared test? number of classes minus 1 2 of 5 What does a spearman's rank calculation measure? how correlated two sets of data are 3 of 5 What does a t-test measure? to find if there is a significant difference between means of two sets of data 4 of 5 how do you calculate degrees of freedom for a t test? (number of individuals in group 1+number of individuals in group 2) -2 5 of 5
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