Using PERT methodology, we calculate the mean duration of the project by summing the expected durations of individual activities. The standard deviation of the project is calculated as 50 a square root of the sum of activity variances.
The Variance Test Experiment is a simple application that demonstrates hypothesis testing under different distribution situations. It may be used in many different activities such as: Suppose rolling a fair die gives a consistent population outcome of six.
Activity variance measures the difference between the actual level of activity a business achieves and its budgeted level. This variance is valued at a standard rate, isolating the financial impact solely attributable to changes in volume.
The activity variance would be calculated with: The Admin Expense using actual activity level and standard rate. minus. The budgeted Admin Expense (the static Budget).
Since, the Standard deviation is the square root of the sum of the project variance. Project variance is computed by adding the activity variance along the critical path.
Activity variance is 81 and 144.B- 30 days is correct answer and this sort of question can be a part of PMP exam. It is simple.Not complex as you described. Data given is P minus O for A1 is 18 & A2 is 24.We want P minus O for Whole project.
