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The guidance system of a ship has four modules that must maintain all function properly for the system to work. Two of the modules have reliability of .85, the other two have reliability of .95 each.
a) Compute the reliability of the system.
b) A backup system with the same components will be added to the ship. The backup will be switched on automatically if the first system fails. Assuming that the switch to the backup works 95% of the time, what is the reliability of the ship's guidance system now?
a distribution has a standard deviation of s 12. find the z- score for each of the following locations in the
Generate a training sample of size 100 for each class, as well as a test sample of 5,000 per class. (Best to generate the centroids matrices per class once and store them).
imagine that a student takes a 20-item multiple choice exam. she didnt study so all of her answers are guesses. each
A survey of top executives revealed that 35 percent of them regularly read Time magazine, 20 percent read Newsweek, and 40 percent read U.S. News and World Report. Ten percent read both Time and U.S. News and World Report.
Compute a 3 month moving average forecast of demand for April through January (of the next year). Compute a 5 month moving average forecast for June through January
one sample of n 8 scores has a variance of s2 6 and a second sample of n 8 scores has s2 10. if the pooled variance
an internet retailer stocks a popular electronic toy at a central warehouse that supplies the eastern united states.
If the researcher wants to test if the blood pressure measurements after the procedure are different from the blood pressure measurements before the procedure, what will the null and alternative hypotheses be? Treat the differences as (blood press..
The random variable x is the number of houses sold by a realtor in a single month at the Sendsom's Real Estate office. Its probability distribution is as follows.
find the margin of error for mumew if x-bar 50 n 16 s 12 and c
suppose five 6 oz tubes of toothpaste are randomly selected and squeezed until no more toothpaste will come out. then
What is the probability of a fatal accident over a lifetime?
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