Performance-based logistics. The Journal of Business Logistics (Vol. 36, 2015) published a study of the factors that lead to successful performance-based logistics (PBL) projects. Opinions of a sample of 17 Department of Defense employees and suppliers were solicited during interviews. Demographics (current position, organization type, experience) were recorded for each interviewee and the data listed in the table below. Interviewee Position Organization Experience (years) 1 Vice president Commercial 30 2 Postproduction Government 15 3 Analyst Commercial 10 4 Senior manager (mgr.) Government 30 5 Support chief Government 30 6 Specialist Government 25 7 Senior analyst Commercial 9 8 Division chief Government 6 9 Item mgr. Government 3 10 Senior mgr. Government 20 11 MRO mgr. Government 25 12 Logistics mgr. Government 30 13 MRO mgr. Commercial 10 14 MRO mgr. Commercial 5 15 MRO mgr. Commercial 10 16 Specialist Government 20 17 Chief Government 25

a. Construct and interpret a pie chart to describe the organization type for the 17 interviewees.

b. Find and interpret the mean years of experience for the 17 interviewees.

c. Find and interpret the median years of experience for the 17 interviewees.

d. Find and interpret the mode of the 17 years of experience values. PBL