# data[].attributes.body
Each year students pass a graduate test with a possible maximum of 100 points, each year a group of students has to pass this test, but the number of test participants is always different. The data of graduate results for the years 2012, 2013 and 2014 was arranged in 3 samples of different sizes. Use one-way ANOVA to check if throughout the years 2012-2014 there were no substantial changes in the graduate test results (the significance level is 0.05).