Time (weeks) Activity Description Immediate Predecessor(s) a m b 1 7 3 4 8 10 15 B C 6 2 4 MOOW LUI Interview for new manager Renovate building Place ad for associates and interview applicants Have new manager prospects visit Purchase equipment for new store and install Check employee applicant references and make final selection Check references for new manager and make final selection Hold orientation meetings and do payroll paperwork B 0592p23 2 7 4 6 12 10 12 F 6 G D E, F, G 1 2. 2 4 H 12 a. How long is the project expected to take? The project is expected to take 21 weeks. (Enter your response as a whole number.) b. Suppose that Kramer has a personal goal of completing the project in 18 weeks. What is the probability that it will happen this quickly? Refer to the standard normal table. The probability that the project is completed in 18 weeks or less is (Enter your response rounded to four decimal places.)