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Customers arrive at a two-server system according to a Poisson process having rate λ = 5. An arrival ?nding server 1 free will begin service with that server. An arrival ?nding server 1 busy and server 2 free will enter service with server 2. An arrival ?nding both servers busy goes away. Once a customer is served by either server, he departs the system. The service times at server i are exponential with rates μi, where μ1 = 4, μ2 = 2.
(a) What is the average time an entering customer spends in the system?
(b) What proportion of time is server 2 busy?
table given below presents the number of surface finish defects in the primer paint found by visual inspection of
Verify value of t for the independent Variable, using formula. (That is, using formula in the Formula Sheet compute the t statistic , given data provided in the print out).
consider a random sample of size n from a bernoulli distribution xi bin1p. for a uniform prior density p unif01 and
The manufacture of the X-15 steel belted radial truck tire claims that the mean mileage the tire can be driven before the tread wears out is 60,000 miles.
A probability distribution for the claim sizes for an auto insurance policy is given in the table below
Management is interested in determining whether their efficiency measures have actually reduced prices. Answer the following questions for a hypothesis test that could be used to test the claim of management.
question 1 8 marks the australian divorce rate has been steadily increasing over the years until late 1990s. however
In the listed information is the findings statistically significant? Why or Why not? Describe the process used to make that determination and provide the level of significance.
What are the critical z-values for a two-tailed hypothesis test - Which statement is correct based on analysis?
a treatment is administered to a sample selected from a population with a mean of mue 80 and a standard deviation of
assume 85 of passengers show up 15 will not. airline booked 11 people for 10 seats.1 find probability there are enough
a survey of adults ages 18-29 found that 82 use the internet. you randomly select 196 adults ages 18-29 and ask them if
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