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Statistics - Standard Error

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Group 1 m=30.000 s=2.100 n=14
group 2 m=25.000 s=1.900 n=15
What is the value of the standard error of the difference between means and the observed value of t.

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Solution Summary

The expert examines the standard error of the difference between means.

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First we calculate the pooled estimate of the standard deviation.

S = sqrt [{(n1 - 1)s1^2 + (n2 - ...

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