Table 3

Summary of results of paired t test

Establishment	Location	Brand category	Time 1	Time 2	df	t	p Value	Time 2 change
All establishments	Exterior overall	All other	0.84	1.42	555	6.22	<0.0001	0.690
		Winston	0.72	0.52	555	−3.1	0.002	−0.278

	Windows/doors	All other	0.64	1.16	555	6.07	<0.0001	0.813
		Winston	0.59	0.42	555	−2.95	0.003	−0.288

Gasoline retailers	Exterior overall	Total	3.97	6.21	83	2.57	0.011	0.564
		All other	1.01	1.82	83	3.07	0.003	0.802
		Camel	0.238	0.69	83	2.53	0.014	1.899
		Kool	0.214	0.56	83	2.06	0.042	1.617
		Newport	0.048	0.32	83	2.73	0.008	5.667

	Building	Total	0.619	1.95	83	2.23	0.028	2.150
		Marlboro	0.179	0.595	83	1.99	0.049	2.324
		Marl/Camel/Kool	0.298	1.12	83	2.02	0.046	2.758

	Windows/doors	Total	2.65	3.73	83	2.34	0.022	0.408
		All other	0.607	1.167	83	2.87	0.005	0.923
		Camel	0.119	0.345	83	2.51	0.014	1.899
		Newport	0.048	0.179	83	2.97	0.004	2.729

Liquor stores	Exterior overall	Camel	0.404	0.165	108	−2.9	0.005	−0.592

	Windows/doors	Total	2.62	1.85	108	−2.18	0.031	−0.294
		Winston	0.431	0.257	108	−2.23	0.027	−0.404
		Camel	0.394	0.147	108	−2.89	0.005	−0.627
		Kool	0.257	0.11	108	−2.31	0.023	−0.572

Convenience	Exterior overall	All other	1.24	2.09	261	5.21	<0.0001	0.685
		Winston	1.095	0.737	261	−3.42	0.0007	−0.327
		Newport	0.832	0.645	261	−2.23	0.029	−0.225

	Windows/doors	All other	0.98	1.82	261	5.34	<0.0001	0.857
		Winston	0.905	0.653	261	−2.27	0.018	−0.278

	Building	Winston	0.168	0.069	261	−2.32	0.021	−0.589