solvermark has helped numerous marketers and business students understand how to use business statistics to solve real-world problems. His web site, http://excelmasterseries.com, is becoming increasingly popular among people wishing for simplfied instruction on how to perform graduate-level business statistics. It uses an easy-to-follow, step-by-step learning method and has lots of worked-out problems. His blog, http://blog.excelmasterseries.com, which explains how to do advanced marketing statistics in Excel to make better marketing decisions, is also rapidly growing in popularity. Finally, Business Statistics Made Simple !