Justin Holman is CEO of Aftermarket Analytics, where he leads efforts to develop cutting edge sales forecasting and inventory optimization technology for the Automotive Aftermarket. Prior to joining Aftermarket Analytics, Justin managed corporate consulting for the Strategy & Analytics division at MapInfo Corporation, leading major projects for retail clients including The Home Depot, Darden Restaurants, Bridgestone-Firestone, Sainsbury’s and New York & Company. Before that, Justin served as Vice President of Software Development at LogicTools, now part of IBM's supply chain application software group. Justin holds a B.A. from Claremont McKenna College, a Ph.D. from the University of Oregon and an Executive Management certificate from Northwestern University's Kellogg School of Management.


  • Doug Watterson 9 years ago

    Do we need to find the centerline, upper control limit, and lower control limit for the x bar, R, and p charts in problems 18.4 and 18.6

    • Justin 9 years ago

      Hi Doug. Good question. No, no don’t worry about the Upper and Lower control limits. Probably too difficult to get them on the Interactive chart in Google Sheets. Cheers, JH

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