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Suppose a worker needs to process 400 items. The time to process each item is exponentially distributed with a mean of 2 minutes, and the processing times are independent. Approximately, what is the probability that the worker finishes in less than 7 hours?
Suppose you wish to test a one-tail hypothesis where you reject H0 only in the lower tail. You calculate ZSTAT = 1.38. What is the statistical decision if you test the null hypothesis at the 0.01 level of significance?
Also suppose that the probability that the current player does not reach the semifanals of the tournament is 0.58 and that there is a 0.71 probability that jill is ranked next weekon the WTA circuit. What is the probability that the current player..
Determine r.m.s. error for regression prediction of height at 18 from height at 6.
What is the probability that among 10 true hypertensives at least 50% are being treated appropriately and are complying with this treatment?
Describe the use of sensitivity analysis and postoptimality analysis in analyzing the results. Describe the characteristics of a Bernoulli process. How is a Bernoulli process associated with the binomial distribution?
Assuming that the process is operating correctly according to specifications, what is the probability that a sample will indicate that an adjustment is needed?
A researcher is interested in estimating the noise levels in decibels at area urban hospitals. She wants to be 99% confident that her estimate is correct.
Is it sensible to conclude that this set of n=16 people is not representative random sample of registered voters?
From an urn containing balls, a ball was drawn, weighted and replaced. This experiment was repeated 5 times. what is the standard error of sample mean?
Use MegaStat's output for simple linear regression to determine the regression equation
A machine has three components working independently. The probability that Component A fails is 0.1, the probability that component B fails is 0.2, and the probability that component C fails is 0.3.
In a series of tests, the piece was let operate till failure, repaired immediately, and let operate till next failure and so on for 3 months. The total number failures observed were 3.
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