IA Analysis - ANOVA or t-test?

IB Biology: IA Analysis - ANOVA or t-test?

If you can plot the data from your investigation in a bar graph of averages, with three or more bars, (like the graph shown) then ANOVA may be a good statistical test for you to use.To compare two means, the t-test works well and will give the same results as the ANOVA. If you have more than two means then you shouldn"t use a t-test.The Analysis Of Variance (ANOVA) is used to compare the means of more than two samples.

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