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April 19, 2014

Homework Help: statistics

Posted by jen on Tuesday, December 6, 2011 at 2:57pm.

we are interested in testing at level of significance alpha =10 whether the population mean is different than 15. a random sample of size 25 is taken with a mean of 13.9. assume standard deviation is 2 and normally distributed population. find the values for zcrit

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