In the analysis stage of each six sigma project, the company uses statistical analysis software from Minitab Inc., State College, Pa. "We find it useful for everything from basic pareto charts to more complex regressions and multivariate analysis," says Tracy Friend, senior quality manager at Allstate Financial.Allstate's six sigma teams also use Microsoft Corp.'s Excel software in the control stage of each project. By entering performance data into Excel on a regular basis, the company monitors the performance of its new processes to ensure improvements are sustained.
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