An Empirical Study of Parameter Estimation for Stated Preference Experimental Design

Table 3

Statistical results of the surveyed sample population.

	Orthogonal		D-efficient		Bayesian D-efficient
Sex
Man: 1	162	50.6%	164	51.2%	163	50.9%
Female: 0	158	49.4%	156	48.8%	157	49.1%
Car ownership
Yes: 1	100	31.3%	104	32.5%	102	31.8%
No: 0	220	68.7%	216	67.5%	218	68.2%
Age
18~24	55	17.2%	56	17.5%	55	17.2%
25~50	251	78.4%	250	78.1%	252	78.7%
51~60	8	2.5%	8	2.5%	8	2.5%
>60	6	1.9%	6	1.9%	5	1.6%
Income
2000	54	16.9%	55	17.2%	54	16.9%
2000~4000	102	31.9%	103	32.2%	103	32.2%
4001~6000	95	29.7%	97	30.3%	96	30%
6001~8000	42	13.1%	40	12.8%	41	12.8%
8000	27	8.4%	25	7.8%	26	8.1%
Total	320		320		320