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Compaq Computer Corporation has an assembly plant in Houston, where the company's Deskpro computer is built. Engineers at the plant are considering a new production facility and are interested in going online with the new facility if and only if they can be fairly sure that the variance of the number of computers assembled per day using the new facility is lower than the production variance of the old system.
A random sample of 40 production days using the old production method gives a sample variance of 1,288; and a random sample of 15 production days using the proposed new method gives a sample variance of 1,112. Conduct the appropriate test at α = 0.05.
completion time from start to finish of a building remodeling project is normally distributed with a mean of 200
the irs will do a random sampling of tax returns filed in 2010. they are concerned about major fraud and have a new
question let x denote the number of days with snowfall of at least 1 inch in a winter. during the past 121 winters
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What is the probability that a simple random sample of auto insurance policies will have a sample mean within $25 of the population mean for each of the following sample sizes: 30, 50, 100, and 400.
Using the below information in a linear programing problem maximize the profit for product A and B. Provide how many of each product should be produced and what is the profit at that level?
In order to compare the means of two populations, independent random samples of 484 observations are selected from each population, with the following results:
if a set of observations contains an extreme value and none of the observations repeat themselves the most
Formulate a linear programming model for this problem.
of the first 10000 votes cast in an election 5180 were for candidate a. find a 95 confidence interval for the fraction
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Given the set A = {1, 2, 3} and the set S = {(x, y) | x and y in A}. Consider the relation ≤ defined on S as follows: ((x1, y1) ≤ (x2, y2) if x1 ≤ x2 and y1 ≤ y2. Draw the directed graph of this relation. Show that it is a partial order. Explain why ..
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