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Assignment 2 SOLUTIONS (1206A2w2008)

# Assignment 2 SOLUTIONS (1206A2w2008) - MGSC 1206.2...

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MGSC 1206.2 SOLUTIONS - ASSIGNMENT #2 Winter 2008 TOTAL = 50 MARKS Due: 1 pm, Friday, January 25 th Note : Show your work, use proper probability notation, and answer word problems with sentences. Hand in your answers to the following textbook questions: 7.6 #16, 20 8.1 #34 8.2 #30 8.3 #30, 32 and your answers to the 4 problems below. SECTION 7.6: #16. Companies A, B and C produce 15%, 40% and 45% respectively of the major appliances sold in a certain area. In that area, 1% of the company A appliances, 1.5% of those of company B, and 2% of those of company C need service within the 1 st year. Suppose a defective appliance is chosen at random. Find the probability that it was manufactured by company A.

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The probability the defective appliance was made by company A is 9.1%. SECTION 7.6: #20. The information in the table pertains to 3 shipping terminals operated by Krag Corp. Krag’s internal auditor randomly selects one set of shipping documents, ascertaining that the set selected P(A D) = 0.0015 P(A D’) = 0.1485 P(B D) = 0.006 P(B D’) = 0.394 P(C D) = 0.009 P(C D’) = 0.441 Note: This formula is not needed. 2 pts 2 pts 1 pt NOTE: A tree diagram is very helpful here but is not absolutely required, so no points are given for it…
contains an error. Which of the following gives the probability that the error occurred in the Land Terminal: (a) 0.02, (b) 0.10, (c) 0.25, (d) 0.50? Terminal % of Cargo Handled % of Error Land 50 2 Air 40 4 Sea 10 14 SECTION 8.1: #34. A business school gives courses in typing, shorthand, transcription, business English, technical writing and accounting. In how many ways can a student arrange a schedule if 3 courses are taken? Assume that the order in which courses are scheduled matters.

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