Scaffolding is to be constructed on all faces of a six-story building for major masonry rehabilitation work to be performed. The exposed surface area of the exterior walls of the building has been estimated to be 432,000ft2. Historical records of the company show that for this simple type of structure, the 'average' productivity rate for erecting scaffolding is 500ft2/hr per worker. Assume that there are three workers assigned, working 8 hours per day. Given the circumstances, suppose that the probability of finishing the activity in 41 days was computed at 90.824%. (Note: Use the z-score table on the last page to answer the following three questions. Also, use the zscores rounded to the nearest hundredth (e.g., \#\#.\#\#).) What is the probability that the activity can be completed between 34 and 39 days? (15 points)