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Determine the posterior probabilities, given the following prior and likelihood probabilities.
Prior probabilities P(s1) = .25 P(s2) = .40 P(s3) = .35 Likelihood Probabilities I 1 I 2 I 3 I 4 s 1 0.4 0.3 0.2 0.1 s 2 0.25 0.25 0.25 0.25 s 3 0 0.3 0.4 0.3
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What is a hypothesis test? Why do we need to use them to make decisions about relating sample results to the population; why can't we just make our decisions by the sample value?
The ages (in years) of the employees at a particular computer store are 36, 32, 22, 32, 33 . Assuming that these ages constitute an entire population, find the standard deviation of the population. Round your answer to at least two decimal plac..
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Computer output from a multiple regression model with three independent variables yields the following estimated regression equation: 20.9 + 1.4X1 + 4.2X2 - 0.7X3.
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Question- The rate constant for this first order reaction is .830 s -1 at 400 C. How long in seconds would it take for the concentration of A to decrease from .690 M to .370M
Question- You start with a 2.354 g sample of a mixture containing SiO,, NaCl, and NH,Cl. If after subliming away the NH,Cl, you have 1.975 grams of sample remaining, what was the mass percent of NH4C1 in the original sample
Based on interviews with 81 SARS patients, researchers found that the mean incubation period was5 days, with a standard deviation of 15.7 days. Based on this information construct a 95% confidence interval for the mean incubation period of SA..
Comment on the production control situations depicted by the four control charts shown on the following page, and state what action, if any, would be necessary in each case.
In 1997 the British government created a program
Construct the 95% confidence interval estimate of the mean number of migraine attacks for those treated with acupuncture.
question 1 a package delivery service claims that no more than 5 percent of all packages arrive at the address late.
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What is the standard error of his prediction
Work up a simulation model to examine the uncertainty for five different investment projects. p1 = 0.5, p2 = 0.35, p3 = 0.65, p4 = 0.58, p5 = 0.45. The outcomes of the projects should be viewed as independent since the projects are run by di..
ANOVA and Factorial Designs
An analysis was done to see if there was a correlation between the number of days of class missed and a student's GPA.
The shelf life of a battery produced by one major company is known to be Normally distributed, with a mean life of 4 years and a standard deviation of 1 years.
A major razor blade manufacturer advertises
A researcher is asked to determine whether or not a productivity objective (in dollars) of better than $75,000 per employee is possible. A productivity test is done involving 20 employees. What conclusion would you reach? The sales are as f..
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