Table 2:

Intergroup comparison of space analysis on plaster models and digital models

		t-test for equality of means
		t	df	Sig. (two-tailed)	Mean difference	Std. error difference	95% confidence interval of the difference
							Lower	Upper
RA available space	Plaster model	−.286	66	.776	−.33422	1.16758	−2.66537	1.99693
	Digital model	−.286	65.998	.776	−.33422	1.16758	−2.66537	1.99694
RB available space	Plaster model	−.634	66	.528	−.65382	1.03106	−2.71240	1.40475
	Digital model	−.634	65.998	.528	−.65382	1.03106	−2.71240	1.40475
RA required space	Plaster model	−.073	66	.942	−.06735	.91829	−1.90079	1.76608
	Digital model	−.073	65.961	.942	−.06735	.91829	−1.90081	1.76610
RB required space	Plaster model	−.152	66	.880	−.12412	.81690	−1.75511	1.50687
	Digital model	−.152	65.967	.880	−.12412	.81690	−1.75513	1.50689