Gabrielle Foley, owner of Pet Paradise, is opening a new store in Columbus, Ohio. Her major concern is the hiring of a manager and several associates who are animal lovers. She also has to coordinate the renovation of a building that was previously owned by a chic clothing store. Foley has gathered the data shown in the table below. Time (weeks) Immediate Activity Description a m b Predecessor(s) A Interview for new manager 1 B Renovate building C Place ad for associates and interview applicants D Have new manager prospects visit E Purchase equipment for new store and install F Check employee applicant references and make final selection G Check references for new manager and make final selection C D 75226- 29655 7 17 13 14 8 6 12 2 3 H Hold orientation meetings and do payroll paperwork E, F, G 2 3 4 a. How long is the project expected to take? The project is expected to take 18 weeks. (Enter your response as a whole number.) b. Suppose that Foley has a personal goal of completing the project in 15 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 15 weeks or less is (Enter your response rounded to four decimal places.)