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A single repairperson looks after both machines 1 and 2. Each time it is repaired, machine i stays up for an exponential time with rate λi , i = 1, 2. When machine i fails, it requires an exponentially distributed amount of work with rate μi to complete its repair. The repairperson will always service machine 1 when it is down.
For instance, if machine 1 fails while 2 is being repaired, then the repair person will immediately stop work on machine 2 and start on 1. What proportion of time is machine 2 down?
Fully charge a 0.330 mF and a 0.650 mF capacitor when they are placed in parallel? How much charge flowed from the battery when the capacitors are placed in series?
An aircraft manufacturer is attempting to determine if the average leg length of the adult male has changed from 44". A sample of 81 men was selected randomly
can we conclude that women think men are less kind, gentle, and thoughtful in the later survey compared with the earlier one? Hint: For the calculations, assume the latter survey as the first sample.
Calculate The Expected Value of X
If they didn't launch new mixing plant another alternate can contribute twenty five million profit for the same period (i.e. estimated 6 years). Draw the complete decision tree and determine whether the product should be launched or not.
At.05 level of significance, is there evidence to propose that mean life length of batteries produced by this manufacturer is more than 400 hours?
a if fx is the probability density function pdf of a continuous random variable xwhat two conditions must be satised ?b
Which of the following is the most reliable source of information? Which of the following are the most common types of doubts people may have about a source?
Show that for any sequence of U -statistics {Un, n ≥ m} generated as above by a random variable f (X1,..., Xm ) with f symmetric and EQ | f | ∞, {Un, Cn }n≥m is a reversed martingale.
the distance between flaws on a long cable is exponentially distributed with mean 12 m.a. find the probability that the
Assume the population standard deviations are not the same. At the .05 significance level, is there a difference in the mean waiting time?
Random samples of five hundred units that were selected daily from a manufacturing process produced an overall defective rate of 3.5%. Calculate the lower and upper control limits for a percentage control chart.
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