Why can not we just do several two sample tests like we did, Ask an Expert

Statistics

Compare Analysis of Variance (ANOVA) with 2-sample tests

Analysis of Variance (ANOVA) is used to compare 3 or more sample means to determine the likelihood that they all came from the same population -- that they are all equal.

• Why can't we just do several 2-sample tests like we did in the previous week?

• In your own words, briefly tell us what these are and what they mean:
o total variation
o treatment variation
o random variation

• How do you know if the means are likely to come from the same population (or not)?

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Category:- Statistics and Probability
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