โดยการวิเคราะห์ทางสถิติ ด้วยโปรแกรม SPSS (Statistical Package for the Social Science for Windows)และเปรียบเที่ยบค่าเฉลี่ด้วยวิธี Least Significant Difference (LSD)
By statistical analysis with SPSS (Statistical Package for the Social Science for Windows) and compared with the value thiap Least Significant Difference method family restaurant (LSD)
The statistical analysis using SPSS (Statistical Package for the Social Science for Windows) and comparison with the average of the Least Significant Difference (LSD).
By statistical analysis with the program SPSS (Statistical Package for the Social Science for Windows) and comepared with specific values Li ways. Least Significant Difference (LSD).