Subject	N	Estimate	Std. error	T value	Pr(>|t|)
1	677	1.09	2.83	0.39	0.7003
2	454	−4.86	4.23	−1.15	0.2528
3	1011	6.42	2.53	2.54	0.0114
4	731	3.40	3.02	1.12	0.2618
5	1261	−0.88	1.87	−0.47	0.6393
6	935	10.80	2.55	4.23	<0.0001
7	1146	7.68	2.20	3.49	0.0006