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1. A grocery store checkout counter has a service rate of 45 per hour, exponentially distributed, with Poisson arrivals at the rate of 30 per hour. Find the operating characteristics of this system.
2. Suppose students arrive during the office hours of a college professor according to a Poisson process with mean arrival rate l. The professor, who deals with his students one by one, has an exponentially distributed service time of ten per hour. Analyze how the average waiting time is expected to change as the arrival rate l varies from five to eight students per hour.
It often becomes tempting to add a large collection of variables to a regression, hoping to let regression "sort out" which variables are important rather than think about why each might matter.
Find the 99% confidence interval of the mean score for all golfers if this is a sample of 50 golfers instead of a sample of 35. Which confidence interval is larger and why?
using the methods of joints determine the force in each member of the truss shown. state whether each member is in
Can you provide an example in recent time that might demonstrate a corrupt or bloated bureaucracy?
tossing for astragali was the most popular game of the chance in roman times. many throws of one present-day astragalus
What is the probability that two randomly selected people both have Stanford-Binet IQs which qualify them for Mensa?
An expert claims that all things being equal, offices without a reception area tend to sell for less than those with a reception area.
Suppose that the telephone calls coming into a certain switchboard obey a Poisson probability law at a rate of 16 calls per minute. If the switchboard
A random sample of likely voters is obtained, and the resulting survey data will be used to test the relevant hypothesis. Let p be the proportion of all voters who favor his candidacy. State the null and alternative hypotheses in terms of p.
what is the probability that the next 5 dinner joe prepare, 3 of them will burn?
vertical banded gastroplasty is a surgical procedure that reduces the volume of the stomach in order to produce weight
This paper is a detailed and comprehensive review of statistical research performed by others on a business related topic of the student's choice.
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