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We consider a waiting system with a single server and finite capacity c = 3, in which the customers arrive according to a Poisson process with rate λ and the service times are independent exponential random variables with parameter μ = 2λ. When the system is full, a fair coin is tossed to determine whether the second or third customer will be the next one to be served,
(a) Write the balance equations for this system, and calculate the limiting probabilities .
(b) Calculate the average time that an arriving customer who finds (exactly) one customer in the system will spend in it.
(c) Calculate the average time that a customer who enters the system will spend in it.
Costs of Television: Listed below are prices (in dollars) and quality rating scores of rear-projection televisions. All of the televisions have screen sizes of 55 or 56 inches.
in a survey respondents were asked to indicate their favorite brand of cereal post or kelloggs. they were allowed only
This result prompts a test administrator to claim that standard deviation for eighth graders on examination is less than 29.At a = 0.10, is there sufficient evidence to support administrator's claim?
urn 1 has 5 red and 7 blue balls and urn 2 has 6 red and12 blue balls. pick 3 uniformly and randomly from each of the 2
Construct a 90 percent confidence interval for the proportion of all kernels that would not pop.
what are the assumptions necessary for hypothesis testing when using the method of least square in multiple regression?
What is wrong with only inspecting the peaches on the top of the barrel? How could you improve your inspection process?
The following is a list of the number correct for each of the two groups. Using analysis of variance techniques, test the null hypothesis, H0 that the two mean test scores are equal.
Suppose the national average for all young adults is 3.7 hours, and the magazine wishes toclaim that their subscribers exercise more on average. State the relevant hypotheses to test this claim. Specifically define any symbols you use.
A wire 1000ft long has a resistance of 0.5 kilo ohms and a area of 94 (CM). Of what material is the wire made?
at some vacation destinations all-inclusive resorts allow you to pay a flat rate and then eat and drink as much as you
Use SPSS and generate all necessary summary statistics and figures (e.g. boxplots, histograms and/or scatter plots) to describe the relationship between the workers' mental health
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