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You have a network with a critical path A-B-C-D. For our purposes, you are allowed to ignore the other paths through the network. The values for optimistic (a), pessimistic (b) and most likely (m) durations for each task are as shown below. These are based on the probability that virtually all (at least 99.7%) of the values of each task fall within the range from a to b.
a. What is the value of μ for the network?
b. What is the value of σμ2 for the network?
c. What is the probability that this network can be finished within 27 days?
suppose that there are seven prospective jurors four men and three women who might be impaneled tosit on a jury in a
The time interval between services at the station follow exponential distribution and as such the mean time taken to serve a unit is 5 minutes. What is the expected average queue length?
Compute and compare the proportions of head injury for the group with helmets versus the group without helmets. What would be your conclusion?
Suppose that a population is normally distributed with a mean of 100 and a standard deviation of 15. Would it be unusual for the mean of a sample of 3 to be 115 or more?
Suppose also that we can buy a bond at time 0 for $.90 that will be worth $1 at time 1. What should the price of this option be? Does the assumption of no arbitrage answer this question?
Sue Taylor, Director of Global Industrial Sales, is concerned by a deteriorating sales trend. Specifically, the number of customers is stable at 1,500, but they are purchasing less each year. She orders her staff to search for causes of the downwa..
Both days have sample standard deviations of 3.4. Is the average mean of size different from day 1 to day 2?
1. identify the sampling technique used to obtain this sample a person throws a phone book into the air five times
a random sample of 45 door-to-door encyclopedia salespersons were asked how long on average they were able to talk to
news reports tell us that the average american is overweight. many of us have tried to trim down to our weight when we
Currently have to wait on line before the technician is able to answer their call. What is the average waiting time in the queue (in hours) before the technician answers a customer's call?
probability played a role in the rigging of the 24-april-1980 pennsylvania state lottery los angeles times 8 september
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