The data were entered into the Excel software program Microsoft Office 2003 and into the SAS Statistical Analysis System software program for Windows, version 8.02 and the following analyses were performed:
Los datos obtenidos fueron inicialmente transportados para el programa Microsoft Office Excel Microsoft Office 2003 y luego para el programa SAS - System for Windows Statistical Analysis System, versión 8.02, para los siguientes análisis:
Os dados obtidos foram inicialmente transportados para o programa Microsoft Office Excel Microsoft Office 2003 e então para o programa SAS, System for Windows Statistical Analysis System, versão 8.02, para as seguintes análises: