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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 the average math sat score for all students taking the exam this year is 480 with standard deviation 100.
the management of red cat computers was considering launching a new product called the tiger 100. the problem was that
To investigate the fluid mechanics of swimming, twenty swimmers each swam a specified distance in a water-filled pool and in a pool where the water was thickened with food grade guar gum to create a syrup-like consistency. Velocity, in meters per sec..
musuppose z is the standardization of x zx-musigma where mu and sigma are the mean and standard deviation of x
In 1851 there were 25,466 nurses in Great Britain. Find the probability that a British nurse selected at random in 1851 would be 60 years or older. (My guess is The sum of the percent of nurses 60 years are older are added equaling 36% or 1967.76/2..
A p-value of 0.82 obtained for a particular hypothesis test would indicate strong evidence that the null hypothesis is true. Discuss.
Use the Emperical Rule to find what two values 68% of the data will fall between for a data set with a mean of 219 and standard deviation of 20.
You are playing Texas Hold'em against one other opponent. Your two down cards are 6 of (diamonds) & 7 of (diamonds). Explain why your strategy will work
the following is a frequency distribution fo the number of times patience use the call light in a days time. x is the
Draw a scatterplot indicating a strong negative relationship between the variables pf income and mental illness. Be sure to label the axes correctly.
Data points (x1, y1 ), (x2,y2),.......,(xn,yn) is regressed to y = 1/(ax+b)2. The constants of the model a and b are solved by data linearization. Find the formulas for calculating a and b?
Estimate the number of claims that the company can expect from beneficiaries of these men within a year.
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