SOLUTION: Given a level of confidence of 955 and a population standard deviation of 14. A. what other information is necessary to find the sample size (n). B. find the maximum error

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Question 581406: Given a level of confidence of 955 and a population standard deviation of 14.
A. what other information is necessary to find the sample size (n).
B. find the maximum error of estimate 9e) if n=78 show work.

Answer by stanbon(75887) About Me  (Show Source):
You can put this solution on YOUR website!
Given a level of confidence of 95% and a population standard deviation of 14.
A. what other information is necessary to find the sample size (n).
n = [z*s/E]^2
Answer: Max Error
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B. find the maximum error of estimate 9e) if n=78 show work.
n = [z*s/E]^2
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78 = [1.96*14/E]^2
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1.96*14/E = sqrt(78) = 8.8318
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E = (1.96*14)/8.8318
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E = 3.1070
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Cheers,
Stan H.