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1. Define reliability. Explain its role in quality control and improvement.
2. Describe the life cycle of a product. What probability distributions would you use to model each phase?
3. Explain procedures that might improve the reliability of a system. How would you increase the availability of a system? Distinguish between a system with components in parallel and another with standby components.
Use the Golf Ball Distance Test file, linked in the Resources under the Required Resources heading, to complete the calculations for the scenario for this assessment.
A biologist studying wolves wants to find a correlation between the lifespan of wolves and the geographic latitude of their habitats. How many variables are involved in such an analysis?
the american restaurant association collected information on the number of meals eaten outside the home per week by
Random sample of 250 americans is selected, the mean of this sample belongs to a sampling distribution. What is the shape of this sampling distribution?
1. What does the current ratio reveal about a company's financial condition? 2. Define and discuss Cost of Goods sold.
The number of standard errors that the sample estimate (p 1 - p 2 ) of (p1 - p2) falls from its null hypothesis value of zero is called
Of the volunteers donating blood in a clinic, 80% have the Rhesus (Rh) factor present in their blood. If five volunteers are randomly selected, what is the probability that at least one does not have the Rh factor?
Find the degrees of freedom for unequal variance test. (Round down your answer to the nearest whole number.) State the decision rule for .05 significance level. (Round your answer to 3 decimal places.)
Show that the length of this con?dence interval tends to 0 in probability (and also a.s.) as n ® ¥; Discuss part (i) for the case that the underlying distribution is B(1, q), q Î Ù = (0, 1) or P(q), q Î Ù = (0, ¥).
For a normal distribution, the probability of randomly selecting a z-score greater than z = -2.00 is p = .0228.
Conduct a full test, at the 5% level of significance, to establish whether there is a statistically significant difference between the population mean times in the two banks. (Assume that the samples are drawn from populations that are approximately..
What is the mean number among 12 truthful persons who will be classied as deceptive? What is the standard deviation of this number?
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