Let X1, X2, X3, X4 be independent random variables that have normal distributions N(u; ,o?), i = 1, 2, 3, 4. A total of 12 observations were taken. a) State the model that can be used to determine...

Extracted text: Let X1, X2, X3, X4 be independent random variables that have normal distributions N(u; ,o?), i = 1, 2, 3, 4. A total of 12 observations were taken. a) State the model that can be used to determine whether the means are all equal. Identi- each term in the model and any necessary conditions. b) Copy and complete the following ANOVA table. Analysis of Variance Table Source of Variation DF SS MS F Pr ( >F) Treatment 628.38 15.535 0.0011 Error Total 11 C) Perform the ANOVA test at the 5% level of significance. Clearly state the hypotheses being tested and the conclusion of your test.