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ID. 113140045

. (,2551)

1.

LOYALTY 2.

BRAND - - - - - - - - - (7Ps) - - - - - - - 3. 4. (7Ps) ()

5. 5. (Population) (Sample) 95% ( , 2551: 48)5.1 (Sample)n P ( P = 0.5)e Z 95% Z 1.96n = (. 50) (1 - .50) (1.96)2 /(0.05)2 = 384.16 384 384 400 (Convenience sampling)

n = P (1 P ) (Z)2/e25. 5.2 5.3 (Quantity research) 5.4 (Descriptive statistic) 1. (Frequency) 2. (Percentage) 3. (Mean)4. (Standard deviation)

5. 5.5 (Inferential analysis) 1. 2 t test for independent sample 95 2. 2 One-way Anova (Analysis of variance) 95 ( , 2541: 266-267) 3. (Content Analysis)

Thank you