กลุ่มตัวอย่างที่ศึกษา คือประชากรวัย

The study sample is the labor age population aged between 18-60 years number of 8500 people find the size samples in this study were calculated according to the formula of the drug came to ne (Yamane, 1967, 886) and used a random sample of the many steps. To store data with a query. Test the confidence of the statistical tools used to analyze data is per cent average, standard deviation and the value of the cross square.

The sample The working age population aged between 18-60 years were 8500 people for the sample size in this study was calculated based on the formula of Yamane (Yamane, 1967,886) and use a multi-stage random sample. Data collected by questionnaire Test of faith The statistics used for data analysis were percentage, mean, standard deviation. And the Chi-Square

The subjects of this study were working-age population age 18-60 years, were 8 500 people. Find the sample size in this study was calculated according to the formula of Yamane (Yamane 1967,,886) and use the selected multiple steps. The data were collected using questionnaires testing beliefs มั่นข two tools. The statistical analysis is, percentage, mean, standard deviation, and chi-square were presented.