=+10.10 The mean length of long-distance telephone calls placed with a particular phone company was known to

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=+10.10 The mean length of long-distance telephone calls placed with a particular phone company was known to be 7.3 min under an old rate structure. In an attempt to be more competitive with other long-distance carriers, the phone company lowered long-distance rates, thinking that

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Statistics The Exploration And Analysis Of Data

ISBN: 9781111804138

6th Edition

Authors: John M Scheb, Jay Devore, Roxy Peck

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