Large Project With Uncertain Activity Times If necessary, round your answer in part (b) to the nearest whole number. (b) The expected project completion time is [: days. Round your answer in part (c) to 2 decimal places. {c} The standard deviation of the project completion times is :] days. For part (d), use values of t and a from parts (bj-(c). (d) What is the probability that the project can be completed in 40 days? We assume that the distribution of the project completion times is symmetric and bell-shaped. Round the z-score to 2 decimal places. The zscore used to calculate the probability is [:]. Express the probability in decimal form with 4 decimal places (i.e. 0.2347 instead of 23.47%) . The probability that the project can be completed in 40 days is S Variance (0\")