And collecting data by using a query, analyze, and statistical processing by computer using a tool program for statistical analysis of the value used is the value value frequency per cent average and standard deviation.
Collect and analyze data using questionnaires and statistical processing with a computer using a software package for the statistical analysis of the frequency, percentage, average, and standard deviation.
And the data were collected by questionnaire and statistical analysis and processing with the computer using the computer program for the analysis of statistical is frequency percentage, average and standard deviation.