To use the methods of this section to test a hypothesis about the difference between two means,

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To use the methods of this section to test a hypothesis about the difference between two means, the population standard deviations must be known.

In Exercises 5 and 6, determine whether the statement is true or false. If the statement is false, rewrite it as a true statement.

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Elementary Statistics

ISBN: 9781259969454

3rd Edition

Authors: William Navidi, Barry Monk

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