Interactive Statistics - | Confidence interval calculator ANOVA
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InteractiveStatistics--One-wayANOVAfromSummaryDataAnalysisofVariancefromSummaryData(updatedApril17--handlesupto10groups)Thiswebpageperformsaone-wayANOVAfromsummarydata--thatis,fromthecounts,means,standarddeviations(orstandarderrors)foreachgroup.Thiscanbeusefulifyoudonthavetheindividualnumbersforthemembersofeachgroup,butonlythesummarizeddata.Thismighthappen,forexample,ifyoureanalyzingdatathathasbeensummarizedinabookorpublishedarticle.Aone-wayANOVAcanbethoughtofasanextensionoftheunpairedStuden...
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This web page performs a one-way ANOVA from summary data -- that is, from the counts, means, standard deviations (or standard errors) for each group. This can be useful if you dont have the individual numbers for the members of each group, but only the summarized data. This might happen, for example, if youre analyzing data that has been summarized in a book or published article.
A one-way ANOVA can be thought of as an extension of the unpaired Student t-test to more than two groups. Or, you can think of the Student t-test as a special case of the ANOVA for only two groups (or "levels" in ANOVA terminology). A two-level ANOVA is algebraically equivalent to a t-test, and produces exactly the same p values. This page can handle up to 10 groups. If you need to evaluate more than 10 groups go here[1].
To use this page you must...