Refer to Exercise 5. a. Find a 95% lower confidence bound for the mean strength. b. Someone

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Refer to Exercise 5.
a. Find a 95% lower confidence bound for the mean strength.

b. Someone says that the mean strength is less than 50.4 kN. With what level of confidence can this statement be made?

Refer to Exercise 5.

In a sample of 100 steel wires the average breaking strength is 50 kN, with a standard deviation of 2 kN.

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Statistics For Engineers And Scientists

ISBN: 9780073401331

4th Edition

Authors: William Navidi

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Question Posted: Nov 01, 2018 08:14 AM

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Refer to Exercise 5. a. Find a 95% lower confidence bound for the mean strength. b. Someone

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a X 50 s 2 n 100 z 05 1645 The lower confidence ...View the full answer

Statistics For Engineers And Scientists

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