MKT 317 Lecture Notes - Lecture 7: Mean Squared Error, Tesla Model X, Observational Error
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H0: n1 = n2 = n3 = n4 = nx. Can only test if all the group means are equal. Where x is the # of means tested. One is different from others = 2 are different. Notes: the following h0 cannot be tested using anova. H0: n1 n2 n3 n4 nx. H0: n1 - n2 = n3 - n4 nx. That would require all means not to be equal, which is not the case. H0: n1 = n2 = n3 all 3 makes get the same mpg. 3 makes of cars, 5 each of make. Xi = n + i + e random error term. Xi is not the mean; observed score on dependent variable. N is the population mean (of all 3 cars) I effect due to the i the level of the independent variable (make of car) o.
