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A random sample of 26 local sociology graduates scored an average of 458 on the GRE advanced sociology test, with a standard deviation of 20. Is this significantly different from the national average (m 5 440)?
This requires you evaluate the data (on the next sheet) and apply Queueing Theory to determine the characteristics of the queues. Please refer to the concept on Queuing Theory for the procedures to do.
If the owner wants to lease some new equipment for the oil change outlet so that the average customer spends 15 minutes in the system what level or speed of service rate must the oil change crew deliver?
Standard deviation of 5. suppose 100 golfers played the course today. Find the probability that the average score of the 100 golfers exceeded 74.
in a sample of 56 addicts 28 were given a new drug to help them overcome their addiction while the remaining 28 were
Internet telephone calls You can use Voice over Internet Protocol (VoIP) to make long-distance calls over the Internet.
a) What is the level of significance? b) What is the value of the sample test statistic? (Round your answer to two decimal places.) c) Find (or estimate) the P-value. (Round your answer to four decimal places.)
How to explain the influences on z-scores with constant variables in hypothesis tests with
Use the frequency? distribution, which shows the number of American voters? (in millions) according to? age, to find the probability that a voter.
Discuss the merits and Imitations of representing statistical data through graphs and diagrams. How do you represent data by means of a pie diagram?
If we take many samples, the sample mean x varies from sample to sample according to a Normal distribution with mean equal to the unknown mean score μ in the population.What is the standard deviation of this sampling distribution?
Use the continuity correction and describe the region of normal curve that corresponds to the indicated binomial probability. The probability of more than 50 right answers.
What is the range of temperatures and What is the range of temperatures and what are the effects of the potential failure?
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