Question

Project task E has the following estimates: (1) optimistic time – 10 days, (2) Pessimistic time - 20 days, and (3) Most likely time – 12 Days. The standard deviation for time using the beta statistical distribution is ________ days.

Answer 1

13 days

Step-by-step explanation:

Calculation for the standard deviation for time using the beta statistical distribution

Expected time = [10 days + (4 * 12 days) + 20 days) / 6]

Expected time = [10 days + 48 days + 20 days) / 6]

Expected time=78 days/6

Expected time=13 days

Therefore the standard deviation for time using the beta statistical distribution is 13 days.