Questions

We know that the CODE C is the longest in the process. Estimates of time range from an optimistic time (a) of 70 hours, a pessimistic time (b) of 130 hours, and a most likely time (m) of 100 hours.

1. Calculate the expected time for this step in the precedence chart and calculate the variance and tell me what it means.

The City Commission of Nashville has decided to build a botanical garden and picnic area in the heart of the city for recreation of its citizens. The precedence table for all activities required to construct this area successfully is given below: CODE ACTIVITY DESCRIPTION IMMEDIATE TIME IN HOURS PREDECESSOR Planning Find location; determine resource requirements 20 None B Purchasing Requisition lumber and sand 60 Planning C Excavating Dig and grade site 100 Planning D Sawing Saw lumber into appropriate sizes 30 Purchasing E Placement Position lumber in correct locations 20 Sawing: Excavating Assembly Nail lumber together 10 Placement G Infill Put sand in and under the equipment 20 Assembly Put dirt around Out fill 10 Assembly equipment Decoration Put grass all over the garden & landscape 30 Infill: Out fill 1. Draw a Gantt Chart for the whole construction activity. the other question seperately, so that we will help you with that too.Please do not downvote. Solution : Activity Duration Imm Pred 20 B 60 A C 100 D 30 B E 20 CD F 10 E G 20 F H 10 F 1 30 G H Gantt Chart 6 40 50 50 80 100 110 120 139 150 180 190 200 219 Start ES Critical Flexible Events D E F H 1 Finish