Question 366950: by measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.92 seconds. Answer each of the following and (show all work).
(A). How many measurements should be made in order to be 90% certain that the maximum error of estimation will not exceed 2.0 sceonds?
(B). What sample is required for a maximum error of 1.5 seconds?11.37 and the sample size is 35, answer each of the following (show all work):
(A). Determine the maximum error of the estimate, E.
(B). Determine the confidence level used for the given confidence interval.
A confidence interval estimate for the population mean is given to be (37.46, 46.39). If the standard deviation is
Answer by stanbon(75887)   (Show Source):
You can put this solution on YOUR website! By measuring the amount of time it takes a component of a product to move from one workstation to the next, an engineer has estimated that the standard deviation is 3.92 seconds. Answer each of the following and (show all work).
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(A). How many measurements should be made in order to be 90% certain that the maximum error of estimation will not exceed 2.0 sceonds?
n = [zs/E]^2
n = [1.645*3.92/2]^2
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(B). What sample is required for a maximum error of 1.5 seconds?
n = [1.645*3.92/1.5]^2
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11.37 and the sample size is 35, answer each of the following (show all work):
(A). Determine the maximum error of the estimate, E.
???
(B). Determine the confidence level used for the given confidence interval.
???
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A confidence interval estimate for the population mean is given to be (37.46, 46.39). If the standard deviation is
???
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Cheers,
Stan H.
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