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Question: A hydraulic press breaks down at the rate of 0.1742 time per day.
a. What is the MTBF?
b. On a given day, what is the probability that it will break down?
c. If four days have passed without a breakdown, what is the probability that it will break down on the fifth day?
d. What is the probability that five consecutive days will pass without any breakdown?
Select three of the applications of statistical forecasting methods listed in Table 20.1. Read the articles describing the applications in the indicated issues of Interfaces. For each one, write a one-page summary of the application and the benefi..
in a recent survey concerning company sales and net earnings 15 companies responded. data analysis was computed letting
A system is tested for 10,000 hours and experiences 2 failures. Its failure rate is believed to be Poisson distributed.
each year ratings are compiled concerning the performance of new cars during the first 90 days of use. suppose that the
According to a national CNN/USA/Gallup survey of 1,025 adults, conducted March 14-16, 2008, 63% say they have experienced a hardship because of rising gasoline prices. How do you believe the survey was conducted and what types of bias could occur ..
in the linear programming formulation of the shortest route problem there is one constraint for each node indicatinga.
From past estimates, manager thinks that about 4% of customers have expressed dissatisfaction. What sample size must you use for this survey?
Suppose first that B = 35. For what range of values of p(θ1) is a optimal? For what range is 13 optimal? For what range is y optimal? Is any decision strongly dominated? If so, by what randomized strategies?
By usingu(x, t) = X(x)T(t) or u(x,y, t) = X(x)Y(y)T(t), separate the following PDEs into two or three ODEs for X and T or X, Y, and T. The parameters c and k are constants. You do not need to solve the equations.
Analyze the table data to conclude whether the distribution of cars that earned the Top Safety Picks safety award has remained the same between 2009 and 2013.
What is the probability that Julie is offered at least one of the three jobs?
Six participants in a particular fMRI (brain scan) study are measured for the increase in activation of their amygdala while they are viewing pictures.
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