Difference between revisions of "ZMean2Test Command"

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:: "≠" = difference in population means ≠ 0
 
:: "≠" = difference in population means ≠ 0
  
Results are returned in list form as {P value, Z test statistic}.
+
Results are returned in list form as {Probability value, Z test statistic}.
  
 
;ZMean2Test[ <Sample Mean 1 >, <Population Standard Deviation σ1>, <Sample Size 1>, <Sample Mean 2 >, <Population Standard Deviation σ2 >, <Sample Size 2>, <Tail> ]
 
;ZMean2Test[ <Sample Mean 1 >, <Population Standard Deviation σ1>, <Sample Size 1>, <Sample Mean 2 >, <Population Standard Deviation σ2 >, <Sample Size 2>, <Tail> ]
 
:Performs a Z test of the difference between two population means using the given sample statistics and population standard deviations.  ''Tail'' is defined as above.
 
:Performs a Z test of the difference between two population means using the given sample statistics and population standard deviations.  ''Tail'' is defined as above.

Revision as of 09:16, 17 August 2012


ZMean2Test[ <List of Sample Data 1>, <Population Standard Deviation σ1>, <List of Sample Data 2>, <Population Standard Deviation σ2>, <Tail> ]
Performs a Z test of the difference between two population means using the given lists of sample data and the population standard deviations. Tail has possible values "<", ">" , "≠" that determine the following alternative hypotheses:
"<" = difference in population means < 0
">" = difference in population means > 0
"≠" = difference in population means ≠ 0

Results are returned in list form as {Probability value, Z test statistic}.

ZMean2Test[ <Sample Mean 1 >, <Population Standard Deviation σ1>, <Sample Size 1>, <Sample Mean 2 >, <Population Standard Deviation σ2 >, <Sample Size 2>, <Tail> ]
Performs a Z test of the difference between two population means using the given sample statistics and population standard deviations. Tail is defined as above.
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