Exercise Two
The one way Anova test results are listed above (See excel file). Before beginning the one way Anova, the main assumptions are: all groups are normally distributed and have equal variances. We have three different groups: type one, type two and type three. Within the groups degree of freedom is df1=37 and between group’s degree of freedom is df2=2. At 5% level of confidence the f-value calculated is greater than the tabulated (critical value) of F. That is, 5.5774>3.2516, hence the null hypothesis is rejected. The variances for the three types of groups are significantly different.
The ...