a) Briefly explain what is meant by the term "exemplar performance". Describe two (2) alternatives for establishing it. b) A project manager observes the following job performance Crew A: 50 linear feet of 4" waste line installed in two hours. Crew B: 500 sq. feet of form work installed in a 4 hour time frame. A review of exemplar rates shows 27 feet per hour for 4" waste and 150 sq. feet per hour for form work. 1) Calculate the PAR values for both crews and record them below. Crew A: Crew B: 2) Explain the order in which the crew activities should be addressed, and why. 3) Explain how this information is used to identify productivity improvement opportunities.