How long can you talk? A manufacturer of phone batteries determines that the average length of talk

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How long can you talk? A manufacturer of phone batteries determines that the average length of talk time for one of its batteries is 470 minutes.

Suppose that the standard deviation is known to be 32 minutes and that the data are approximately bell-shaped. Estimate the percentage of batteries that have z-scores between − 1 and 1.

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Elementary Statistics

ISBN: 9781264136407

4th Edition

Authors: William Navidi , Barry Monk

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Question Posted: Jul 18, 2024 07:09 AM

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How long can you talk? A manufacturer of phone batteries determines that the average length of talk

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Elementary Statistics

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