Difference between revisions of "Stat202:Test of Significance Concepts Crib Sheet"

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(Created page with "== One Sample Z-Test == Hypotheses: * About the population mean of a single quantitative variable. Null hypothesis: * Population mean has a specific value. Alternative h...")
 
(→‎One Sample Z-Test)
 
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== One Sample Z-Test ==
 
  
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Hypotheses:
 
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* About the population mean of a single quantitative variable.
 
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Null hypothesis:
 
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* Population mean has a specific value.
 
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Alternative hypothesis:
 
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* Pick one: the population mean is [(1) not equal to, (2) greater than, or (3) less than] the specific value.
 
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Judgment from:
 
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* A sample from the population.
 
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* You can do the test if you only the sample mean and the sample size.  But in all cases you need to assume you know the standard deviation of the population.  The alternative to knowing the population standard deviation is to use the sample standard deviation, but that requires a different test.
 

Latest revision as of 20:40, 19 May 2017

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