Need to use ANOVA

You must answer this quiz below using the approach explained in the previous videos on ANOVA. An educator was interested in the effect three different kinds of new educational techniques would have upon the mean time to complete a task. The educator used 15 subjects and randomly assigned 5 of them to each technique A, B and C. The data represent the time in minutes to complete the task. Use a 5% level of significance to test that the population mean times to complete the task are the same with each technique. The data are given in the table. A B C 20 21 30 22 26 24 25 26 26 24 27 25 19 25 30