A normal population has a mean of 60 and a standard deviation of 12. You select a

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A normal population has a mean of 60 and a standard deviation of 12. You select a random sample of 9. Compute the probability the sample mean is:

a. Greater than 63.

b. Less than 56.

c. Between 56 and 63.

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Statistical Techniques in Business and Economics

ISBN: 978-0078020520

16th edition

Authors: Douglas Lind, William Marchal

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Question Posted: Dec 10, 2014 07:47 AM

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A normal population has a mean of 60 and a standard deviation of 12. You select a

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a z So probability is 02266 fo...View the full answer

Statistical Techniques in Business and Economics

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