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A computer repair shop gets computers on regular basis for repairs. The repair time between two computers is exponentially distributed with mean time between repairs of two computers being 2 hours. Find the conditional probability that a repair of a computer takes at least 10 hours given that duration of the repair exceeds 9 hours. Re-compute the answer if distribution of repair time is assumed to be uniformly distributed between 0 and 20 hours.
What is the role of the F test in multiple regression? (b) How is the F statistic calculated from the ANOVA table? (c) Why are tables rarely needed for the F test?
One group is given the new drug and the other group is given the standard drug. Data are recorded on the effects of each drug. Is the research division using dependent or independent samples? Why?
There were 3 defectives in the first batch and 5 in the second. Find a 95% confidence interval using the plus four method for the difference in the proportion of defectives.
What is the p-value and compute a 95% CI for the difference in means between the two groups?
What is the probability of accepting a shipment containing 25% defectives and calculate the mean of the sampling distribution.
let x have an exponential distribution with mean sigma.a find the first quartile q1b how far is the first quartile
In the following example, why would Chebyshev's Theorem be used instead of the Empirical Rule?
There is significant evidence at alpha=0.05 t o show that the populations of endotoxin levels in children living varying distances from operating farms are not equal.
question which is relatively better a score of 79 on a psychology test or a score of 38 on an economics test?
The process standard deviation is .15, and the process control is set at plus or minus one standard deviation. Units with weights less than 9.85 or greater than 10.15 ounces will be classified as defects. Round your answer to four decimal places.
The evidence linking global warming to human activity-such as burning fossil fuels-is weak. Therefore, human activity does not cause global warming.
q1. you compute the components of a one-way anova table and you find msb 12 and msw 2. the critical value for the f
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