Table 3. Mean of willingness to pay according to demographic factors (N = 273).

Variable		Mean
	N	WTP (RM)	P-value
Age group
25–34	93	135.70	0.845
35–44	86	128.45	0.225
45–54	57	137.73	0.938
55 and above	37	159.00	0.068
Sex
Male	156	146.91	0.017*
Female	117	123.79	0.017*
Ethnicity
Malay	156	124.13	0.002*
Chinese	88	183.90	0.000*
Indian	29	63.90	0.000*
Occupation
Civil servant	32	160.47	0.073
Private employee	92	147.89	0.104
Self-employment	73	126.85	0.199
Retired	11	172.77	0.125
Student	23	155.41	0.242
Others	36	90.60	<0.001**
Unemployed	6	110.67	0.409
Marital status
Single	54	151.55	0.131
Married	213	133.56	0.175
Widowed	3	171.33	0.449
Divorced	3	84.83	0.250
Literacy
Illiterate (never been to school)	3	45.50	0.044*
Literate	270	138.02	0.044*
Education
Primary	14	119.18	0.386
Secondary	111	104.51	<0.001**
Diploma	66	97.55	<0.001**
Degree	63	222.41	<0.001**
Postgraduate	16	221.56	<0.001**
Monthly income group (RM)
≤2000	52	105.48	0.001*
2001–3000	59	123.82	0.148
3001–4000	38	127.09	0.404
4001–5000	34	161.06	0.058
>5000	90	158.94	0.001*

* P<0.05

** P<0.001