(*:Mathematica Version: 3.0 *)

(*:Name: Statistics`Common`PopulationsCommon` *)

(*:Context: Statistics`Common`PopulationsCommon` *)

(*:Title:
  Options for functions for computing Confidence Intervals and Hypothesis Tests
	on Population Parameters
*)

(*:Author:
  Dave Withoff (Wolfram Research), March 1991
*)

(*:Copyright: Copyright 1991-1999, Wolfram Research, Inc. *)

(*:Reference: Usage messages only. *)

(*:Summary:
This package introduces symbols ins a common context for use in statistical
packages that test hypotheses about or compute confidence intervals for
population parameters.
*)

(*:Keywords: Mean, variance, sample mean *)

(*:Requirements: No special system requirements. *)

(*:Warning: This package is a subsidiary package to
        ConfidenceIntervals.m and HypothesisTests.m.  It is
        not meant to be loaded as an individual package. *)

(*:Sources: Basic statistics texts. *)

BeginPackage["Statistics`Common`PopulationsCommon`"]
 
KnownVariance::usage =
"KnownVariance is an option to statistical confidence interval and
hypothesis test functions, and is used to specify the population variance
whenever formulas corresponding to known population variance are to
be used.  The variance specification should be a list of variances if
more than one different variance is to be specified.  If only one
variance is specified, it is used for all appropriate populations."

KnownStandardDeviation::usage =
"KnownStandardDeviation is an option to statistical confidence interval and
hypothesis test functions, and is used to specify the population standard
deviation whenever formulas corresponding to known population standard
deviation are to be used.  The standard deviation specification should be
a list of standard deviations if more than one different standard deviation
is to be specified.  If only one standard deviation is specified, it is
used for all appropriate populations."

EqualVariances::usage =
"EqualVariances is an option to certain statistical confidence interval
and hypothesis test functions and is used to specify that the appropriate
unknown population variances are equal."



 

EndPackage[]
