Random samples of size n were selected from a normal population with the means and variances given

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Random samples of size n were selected from a normal population with the means and variances given . Describe the shape of the sampling distribution of the sample mean and find its mean and standard error.

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Introduction To Probability And Statistics

ISBN: 9780357114469

15th Edition

Authors: William Mendenhall Iii , Robert Beaver , Barbara Beaver

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