The critical path for the network activities shown below is with duration_ Immed

Question

The critical path for the network activities shown below is with duration_ Immediate DurationPredecessors A,B B,CD 7) is the amount of time an individual activity in a network can be delayed without delaying the entire project 8) Wh deman at is the forecast for May based on a weighted moving average applied to the following past d data and using the weights: 0.5, 0.3, 0.2 (largest weight is for most recent data)? eb. Mar attempting to monitor a filling process that has an overall average of 705 cc. The average range is 17 cc. If you use a sample size of 6, what are the upper and lower control limits for the x- bar chart and R-chart? 10) A graphic design studio is considering three new computers. The first model, A, costs $5000. Model B and C cost $3000 and $1000 respectively. If each customer provides $50 of revenue and variable costs are $20/customer, find the number of customers required for each model to break even 11) East Texas Seasonings is preparing to build one processing center to serve its four sources of seasonings. The four source locations are at coordinates shown below. Also, the volume from each sour is provided. What is the center of gravity? X-coordinate Y-coordinate Volume Athens, Texas Beaumont, Texas Carthage Texas Denton, Texas 30 20 10 50 30 10 70 50 150 350 100

Explanation / Answer

Please post all the questions separately.

6.

A and B are independent and doesn't have any prerequisite so can be done simultaneously.

Next for C, the pre-requisite is A and B, so C production can't start until B is finished.  

total time spent so far = max(A,B) = 4

At t = 4, product of C starts which goes till t = 10

but D doesn't C has pre-requistie so can be done simultaneously started at t = 4 and finished at t=5

for E, pre-requisite are B, C, and D. so it can be start only at t= 10 and will go on till t = 12.

so duration is 12.

flow is A + B -> C+D -> E

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