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September 21, 2014

Homework Help: statistics

Posted by Anonymous on Friday, November 4, 2011 at 2:43pm.

A single sample is being used to construct a 90% confidence interval for the population mean. What would be the difference between an interval for a sample of n = 25 and the interval for a sample of n = 100? Assume that all other factors are held constant.

Options:

With n = 25, the standard error would be larger and the interval would be wider.

With n = 25, the standard error would be smaller and the interval would be narrower.

With n = 25, the standard error would be smaller and the interval would be wider.

With n = 25, the standard error would be larger and the interval would be narrower.

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