A company involved in professional training wants to evaluate three learning methods in a supply management course. The course focuses on the use of software applications and management problem solving. Twelve students enrolled in the course were randomly assigned to the three learning methods. The results obtained by each trainee at the end of the 15-hour course are shown in the table below:

Using a significance level of 5%, the ANOVA obtained for this problem is as follows Analysis of variance: one factor DETAILED REPORT Groups M1 M2 M3 ANALYSIS OF VARIANCE Source of variations Between groups Within groups Total Number of samples Sum of squares 232.17 232.75 464 92 Sum 324 348 305 Degree of freedom Average 81 87 76.25 Mean of squares 116.08 25.86 Variance 44.6667 7.3333 25.5833 4.489