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Changed 'accept' to 'not rejected'

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[SVN r7167]
This commit is contained in:
Paul A. Bristow
2007-06-26 13:36:29 +00:00
parent 58f815255e
commit 4d9fa61b8d
4 changed files with 47 additions and 41 deletions
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24
example/f_test.cpp
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@@ -1,4 +1,6 @@
// (C) Copyright John Maddock 2006
// Copyright John Maddock 2006
// Copyright Paul A. Bristow 2007
// Use, modification and distribution are subject to the
// Boost Software License, Version 1.0.
// (See accompanying file LICENSE_1_0.txt
@@ -23,10 +25,10 @@ void f_test(
{
//
// An F test applied to two sets of data.
// We are testing the null hypothesis that the
// standard deviation of the samples is equal, and
// that any variation is down to chance. We can
// also test the alternative hypothesis that any
// We are testing the null hypothesis that the
// standard deviation of the samples is equal, and
// that any variation is down to chance. We can
// also test the alternative hypothesis that any
// difference is not down to chance.
// See http://www.itl.nist.gov/div898/handbook/eda/section3/eda359.htm
//
@@ -80,17 +82,17 @@ void f_test(
cout << "Alternative Hypothesis Conclusion\n";
cout << "Standard deviations are unequal (two sided test) ";
if((ucv2 < F) || (lcv2 > F))
cout << "ACCEPTED\n";
cout << "NOT REJECTED\n";
else
cout << "REJECTED\n";
cout << "Standard deviation 1 is less than standard deviation 2 ";
if(lcv > F)
cout << "ACCEPTED\n";
cout << "NOT REJECTED\n";
else
cout << "REJECTED\n";
cout << "Standard deviation 1 is greater than standard deviation 2 ";
if(ucv < F)
cout << "ACCEPTED\n";
cout << "NOT REJECTED\n";
else
cout << "REJECTED\n";
cout << endl << endl;
@@ -101,8 +103,8 @@ int main()
//
// Run tests for ceramic strength data:
// see http://www.itl.nist.gov/div898/handbook/eda/section4/eda42a1.htm
// The data for this case study were collected by Said Jahanmir of the
// NIST Ceramics Division in 1996 in connection with a NIST/industry
// The data for this case study were collected by Said Jahanmir of the
// NIST Ceramics Division in 1996 in connection with a NIST/industry
// ceramics consortium for strength optimization of ceramic strength.
//
f_test(65.54909, 61.85425, 240, 240, 0.05);
@@ -176,6 +178,6 @@ Results for Alternative Hypothesis and alpha = 0.0500
Alternative Hypothesis Conclusion
Standard deviations are unequal (two sided test) REJECTED
Standard deviation 1 is less than standard deviation 2 REJECTED
Standard deviation 1 is greater than standard deviation 2 ACCEPTED
Standard deviation 1 is greater than standard deviation 2 NOT REJECTED
*/