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Test the null hypothesis that the means from two populations are equal in the following case. 1 and 2 are sample means found from samples with size n1 and n2 drawn from normal distributions with known variances 21 and 22.

Test the null hypothesis that the means from two populations are equal in the following case. 1 and 2 are sample means found from samples with size n1 and n2 drawn from normal distributions with known variances σ21 and σ22. State the significance level of the test. Use a two-tailed test.
1 = 20.0, 2 = 21.0, n1 = 25, n2 = 50, σ21 = 25.0, σ22 = 25.0.

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The distribution of the sample mean from the first sample is N 1 1 0 and for the second is N 2 0 5 b…View the full answer


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Modeling the Dynamics of Life Calculus and Probability for Life Scientists

Modeling the Dynamics of Life Calculus and Probability for Life Scientists

ISBN: 978-0840064189

3rd edition

Authors: Frederick R. Adler

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Posted Date: April 14, 2016 07:11:09
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