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April 19, 2014

Homework Help: Statistics

Posted by What? on Friday, October 26, 2012 at 1:23pm.

When finding a confidence interval for a population mean based on a sample of size 11, which assumption is made?


The standard deviation is fixed.

The sampling distribution of z is normal.

The sampling distribution of the sample means is approximately normal.

There is no special assumption made.

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