a level of 9 percent, and we believe the integration of a sample at Level 0, 0 tools that use a survey questionnaire is the section about the level 5 by abrasion resistance the confidence of both equal to 0.9 the statistics used to analyze data using a program developed by the social sciences to the study of the frequency of the average standard deviation (S. D.) and using statistical hypothesis Testing using the test value (T-Test) and the analysis of the shifts in one way (One - Way ANOVA), when it was found that there is a different test for different users with different methods to find the least significant (Least Significant Difference: LSD).
การแปล กรุณารอสักครู่..