STAT 3006 Lecture Notes - Lecture 8: Gastric Acid, Duodenum, Complement Factor B
28 Sep 2018
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Allows one to use an anova test if you decide to include a second factor. Introducing a second factor will usually reduce the observed errors in the model. It is also more efficient to study the factors simultaneously than individually. Studying factors together allows us to learn how they interact with each other. Factor a has i levels; factor b has j levels. Balanced anova: within each combination of a & b, we have the same number of experimental units (sometimes called r, replicates). This does not mean that a = b. The data and means can be summarized in data and means tables. The total number of observations is (cid:1853) (cid:1854) : example: suppose we are looking at two capsule types (c or v) and two digestive fluids (gastric of duodenal). Randomly assign five capsules of each type to each type of digestive juice and observe dissolve time.
