Subject	N	Estimate	Std. error	T value	Pr(>|t|)
1	447	21.03	8.61	2.44	0.0150
2	351	−3.12	10.74	−0.29	0.7713
3	826	−3.56	5.00	−0.71	0.4770
4	607	0.71	5.63	0.13	0.9002
5	775	31.31	6.97	4.49	<0.0001
6	566	−9.67	9.56	−1.01	0.3120
7	394	18.93	10.32	1.83	0.0674