homework 12 - Rodney Mercer 1 when we dont know the...

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Rodney Mercer1. when we don’t know the population standard deviation and we are comparing two samples.3. we use the sinstead of σbecause we are working from a sample instead of a population6. when we know the mean but not the standard deviation 24.a. 81=7, p=±1.813b. 421=41, p=1.684c. 891=88, p=±2.63944.a. H0: µ12, H1: µ1≠µ2b. single sample t testc.

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