To get to an early class on time, most of us follow a standard routine. Following...

 

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To get to an early class on time, most of us follow a standard routine. Following is a list of tasks, predecessors, and durations. Assume that all precedence relationships are Finish-to-Start (FS). In this example, you must listen to the morning news in order to do a 10-minute homework assignment for class befoe you leave. Note that your lunch is made and packed for you by someone else (your Mom?) while you shower. 1. Compute the Expected Times and Variance for each task. Task A B C D E F G H I Description Turn off alarm at 7:15 AM Shower Dress Make lunch Pack lunch Listen to news Last minute homework Ride to school Arrive for 8am class Critical Path Time duration of CP (min) Estimated Arrival Time Stdev of CP Predecessor none A Number of stdev between 8:00AM arrival B A and estimated arrival time D C F Probability E, G H Durations (min) Optimistic Most Likely Pessimistic Expected 1 2 5. BONUS - what is the probability you will arrive on time at 8:00am? Variance of CP 7 5 6 3 5 7 10 0 2. Draw an AON Network Diagram using the Expected Times. Follow the format of textbook figure 10.6 with a small mini-table for each node. Denote the critical path using bolding or a different color. 3. Use the forward pass and backward pass methods to calculate the ES, EF, LS, LF, and slack for each task. 4. Which tasks are on the critical path? What time will you arrive at class? 1 10 6 8 3 5 10 15 0 18 7 10 5 5 15 22 0 Variance (Bonus) (remember that sequence starts at 7:15 AM) Task ID Duration ES EF LS LF Float THE To get to an early class on time, most of us follow a standard routine. Following is a list of tasks, predecessors, and durations. Assume that all precedence relationships are Finish-to-Start (FS). In this example, you must listen to the morning news in order to do a 10-minute homework assignment for class befoe you leave. Note that your lunch is made and packed for you by someone else (your Mom?) while you shower. 1. Compute the Expected Times and Variance for each task. Task A B C D E F G H I Description Turn off alarm at 7:15 AM Shower Dress Make lunch Pack lunch Listen to news Last minute homework Ride to school Arrive for 8am class Critical Path Time duration of CP (min) Estimated Arrival Time Stdev of CP Predecessor none A Number of stdev between 8:00AM arrival B A and estimated arrival time D C F Probability E, G H Durations (min) Optimistic Most Likely Pessimistic Expected 1 2 5. BONUS - what is the probability you will arrive on time at 8:00am? Variance of CP 7 5 6 3 5 7 10 0 2. Draw an AON Network Diagram using the Expected Times. Follow the format of textbook figure 10.6 with a small mini-table for each node. Denote the critical path using bolding or a different color. 3. Use the forward pass and backward pass methods to calculate the ES, EF, LS, LF, and slack for each task. 4. Which tasks are on the critical path? What time will you arrive at class? 1 10 6 8 3 5 10 15 0 18 7 10 5 5 15 22 0 Variance (Bonus) (remember that sequence starts at 7:15 AM) Task ID Duration ES EF LS LF Float THE

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Lets go through each step to answer your questions 1 Compute the Expected Times and Variance for each task Task A Optimistic Duration 1 minute Most Li... View the full answer