... whether the null hypothesis is rejectedor not. The result of the hypothesis test is a decision to either rejector not reject the null hypothesis; that is, the hypothesis is either96 Six Sigma ... ofanalysis, the so-called “Whats,” and to the other more detainedunit of analysis, the so-called “Hows.” At each of the four phas-es in Figure 4.9, the left-hand requirements are “Whats,” and the upper ... 32From: Six Sigma for Quality and ProductivityPromotion©APO 2003, ISBN: 9 2-8 3 3-1 722-Xby Sung H. ParkPublished by the Asian Productivity Organization 1-2 -1 0 Hirakawacho, Chiyoda-ku, Tokyo 10 2-0 093,...