Refer to Exercise 7. a. Find a 95% lower confidence bound for the mean capacity of this

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Refer to Exercise 7.
a. Find a 95% lower confidence bound for the mean capacity of this type of battery.

b. An engineer claims that the mean capacity is greater than 175 ampere-hours. With what level of confidence can this statement be made?

Refer to Exercise 7.
The capacities (in ampere-hours) were measured for a sample of 120 batteries. The average was 178 and the standard deviation was 14.

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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 08:15 AM

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Refer to Exercise 7. a. Find a 95% lower confidence bound for the mean capacity of this

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a X 178 s 14 n 120 z 05 1645 The lower confidence ...View the full answer

Statistics For Engineers And Scientists

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