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Final Exam Questions -- ADM2303, ADM5300 -- Fall 1986 1. Descriptive Statistics The following Minitab output presents some data and its manipulation for different Canadian Treasury Bills purchased in 1986. All values are given in dollars. Be sure to explain your work in enough detail that the marker can understand what you have done. Point form explanations are acceptable. a) Using the information given, draw the empirical probability distribution for percentage return on investment. b) What is the probability a T-Bill returns under 8% from this distribution? Show briefly how you get this result. c) What is the modality of the empirical distribution? d) How should the average return on investment be calculated? Is there only one possible average return on investment? Explain briefly? e) What is the mean of the percentage return on investment distribution? f) What is the average return per dollar invested? 2. Joe and Nancy both operate milling machines to make car engine parts for Canadian Tire. In milling distributor shaft gears, Joe has been observed to produce 6.5 shafts per hour with standard deviation of 0.65 shafts per hour. Nancy has been observed to produce 7.8 shafts per hour on average with

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