Difference between revisions of "TTest Command"

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m (1 revision: statistics commands)
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{{command|statistics}}
 
{{command|statistics}}
 
;TTest[<List of Sample Data>,<Hypothesized Mean>,<Tail>]
 
;TTest[<List of Sample Data>,<Hypothesized Mean>,<Tail>]
:{{description}}
+
: Performs a one sample T test of a population mean using the given list of sample data.  ''Hypothesized Mean'' is the population mean assumed in the null hypothesis. ''Tail'' has possible values "<", ">" , "≠".  These specify the alternative hypothesis as follows.
 +
::  "<"  =  population mean < ''Hypothesized Mean''
 +
::  ">"  =  population mean > ''Hypothesized Mean''
 +
::  "≠"  =  population mean  ≠ ''Hypothesized Mean''
 +
 
 +
: Results are returned in list form as {P value, T test statistic}.
 +
 
 
;TTest[<Sample Mean>,<Sample Standard Deviation>,<Sample Size>,<Hypothesized Mean>,<Tail>]
 
;TTest[<Sample Mean>,<Sample Standard Deviation>,<Sample Size>,<Hypothesized Mean>,<Tail>]
:{{description}}
+
: Performs a one sample T test of a population mean using the given sample statistics. ''Hypothesized Mean'' and ''Tail'' are defined as above.  Results are returned in list form as {P value, T test statistic}.

Revision as of 23:42, 22 July 2011



TTest[<List of Sample Data>,<Hypothesized Mean>,<Tail>]
Performs a one sample T test of a population mean using the given list of sample data. Hypothesized Mean is the population mean assumed in the null hypothesis. Tail has possible values "<", ">" , "≠". These specify the alternative hypothesis as follows.
"<" = population mean < Hypothesized Mean
">" = population mean > Hypothesized Mean
"≠" = population mean ≠ Hypothesized Mean
Results are returned in list form as {P value, T test statistic}.
TTest[<Sample Mean>,<Sample Standard Deviation>,<Sample Size>,<Hypothesized Mean>,<Tail>]
Performs a one sample T test of a population mean using the given sample statistics. Hypothesized Mean and Tail are defined as above. Results are returned in list form as {P value, T test statistic}.
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