A sample: the military forces stationed in the Thai army. In Bangkok that the Government elected last year, according to the Statistics Division in the register 2 2558 (2015) Royal Thai Army land treatment by this study sample is determined to be appropriate and sufficient to represent the target population. Using a table of khret c & mokaen (Krejcie & Morgan: 1970), which found that the number of people who made the study of 1813 people should have a sample of 317 people and to set the ratio between samples used in research with variables to fit the statistical analysis of.Propruan multiples (Multivariate Analysis), the sample size should be equal to 20 samples per 1 variant a (Hair. etal. 1992), the study contains all variables, sample size, sample 17 should have at least 340 people and to cover both the sample size determination and the proper.Statistical analysis of Researchers are determining the size of the sample is 400 people, and to prevent loss of data, samples and the sufficiency of the information is incomplete. The sample size is increased to 450 people by the military forces stationed in the grade 2 from three branches with a simple random method (Random Sampling) by way of lottery in accordance with the proportion of military forces stationed in the military service of the armed forces in each category are as follows: 167 Navy. Army men air force ones 171 450 people.
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