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1. RELIABILITY OF 2-COMPONENT PARALLEL SYSTEM
Obtain an explicit expression for the reliability of a system consisting of a parallel arrangement of two components, C1 and C2 , with respective reliabilities, R1 and R2. Explain in words what the expression for the system reliability means in terms of the status of each component.
2. RELIABILITY OF 2-COMPONENT AND 4 COMPONENT PARALLEL SYSTEMS
If two of the identical components of Example 21.1 are now arranged in parallel (instead of in series), ?rst obtain the system reliability for this 2-component parallel con?guration. If two more identical components are added in parallel, obtain the system reliability for the resulting 4- component parallel con?guration.
If many samples of size 1000 persons are chosen, determine the expected value (mean X-bar) or average of average IQ's for these samples?
A sample standard deviation of 25 a sixth baby has a birth weight of 125. After the sixth baby, the sample standard deviation is?
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What standard deviation (within 0.001 inch) minimizes the annual cost of producuign elevator rails. You do not need to try standard deviations in excess of 0.02 inches.
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Perform 5 t-tests on the data comparing C1 to C2 on each of the 5 questions. Indicate which of the 5 variables has a difference between C1 and C2.
You survey a sample of 10 college students to measure their racial prejudice using a scale of 0 (no prejudice) to 100 (extreme prejudice). Here are the scores you obtained.
In brief describe three situations in which the 'First In First Out' discipline rule is not applicable in queuing analysis. Provide examples of four situations in which there are limited, or finite population.
Find a 95% confidence interval for the population mean concentration of uric acid in this patients blood. What is the margin of error?
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