Submitted on: 16 May 2012.
Revised on: 01 July 2012.
Accepted on: 21 August 2012.
___________________Journal of Statistics and Management Systems
Submitted on: 20 August 2009.
Revised on: 23 November 2009.
Accepted on: 05 January 2010.
___________________Journal of Statistics and Management Systems
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Submitted on: 11 January 2013.
Revised on: 30 March 2013.
Accepted on: 14 May 2013.
___________________Journal of Statistics and Management Systems
Submitted on: 13 July 2022.
Revised on: 21 September 2022.
Accepted on: 08 October 2022.
___________________Journal of Statistics and Management Systems
Submitted on: 03 May 2009.
Revised on: 10 August 2009.
Accepted on: 06 October 2009.
___________________Journal of Statistics and Management Systems