The American Society for Quality (ASQ) conducted a salary survey of all its members. ASQ members work in all areas of manufacturing and service-related institutions, with a common theme of an interest in quality. For the survey, emails were sent to 54,337 members, and 6,093 valid responses were received. Manager and quality engineer were the most frequently reported job titles among the valid responses. Master Black Belt, a person who takes a leadership role as the keeper of the Six Sigma process and Green Belt, someone who works on Six Sigma projects part time, were among the other job titles cited. Descriptive statistics concerning salaries for these four titles are given in the following table:

Compare the salaries of Green Belts, managers, quality engineers, and Master Black Belts.

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Sample Standard Job Title Size Minimum Maximum Deviation Mean Median Green Belt Manager 1,387 38,000 732,000 27,906 91,878 89,000 Quality766 25,000 185,000 21,933 79,575 78,000 Engineer Master 79 28,000 185,000 27,474 112,946 110,000 Black Belt 26 36,000 135,000 23,399 74,173 70,500 fron ll. Hansen-Facing Tight Times," Owalty Pm gress. December 2012, p. 29.