MKT 317 Lecture Notes - Lecture 9: Ssab, Complement Factor B, Ethiopian Aristocratic And Court Titles
Document Summary
Xij= n + ai + bi + eij. Xij = score on dependent variable for ith level of a and ith level of b. N = population mean ai = effect due to independent variable a. Bi = effect due to independent variable a. Independent variable a: h0: 1 = 2 = 3 = a = 0, h1: at least one i 0. Independent variable b a = # of levels of a: h0: b1 = b2 = b3 = bb = 0, h1: at least one bi 0. Sum of squares, mean sum of square, f-test. One observation per cell (cid:314) no interaction: sst = ssa + ssb + sse, msa = ssa/ a 1. Mean squares: mse = sse/ (a 1)(b 1, fcalc a = msa/ mse = [ssa/ (a 1)]/ [sse/ (a 1) (b 1)] Fcrit a = (f , (a 1), [(a 1) (b 1)]
