Table 4 Result of t -test for the year... | Emerald Publishing

Table 4

Result of t-test for the year 2011

Independent sample test
		Levene's test for equality of variances		t-test for equality of means
		F	Sig.	t	df	Sig. (2-tailed)	Mean difference	Std. error difference	95% confidence interval of the difference
		F	Sig.	t	df	Sig. (2-tailed)	Mean difference	Std. error difference	Lower	Upper
DSRI	Equal variances assumed	9.287	0.005	3.527	28	0.026	0.30084	0.57080	−0.86839	1.47007
DSRI	Equal variances not assumed			2.560	17.42	0.058	0.30084	0.53768	−0.83149	10.43317
GMI	Equal variances assumed	1.102	0.303	1.663	28	0.107	0.17128	0.10298	−0.03966	0.38222
GMI	Equal variances not assumed			1.691	27.70	0.102	0.17128	0.10130	−0.03633	0.37889
AQI	Equal variances assumed	4.876	0.036	1.315	28	0.199	0.01250	0.00951	−0.00698	0.03197
AQI	Equal variances not assumed			1.376	21.53	0.183	0.01250	0.00908	−0.00637	0.03136
SGI	Equal variances assumed	5.871	0.022	−1.942	28	0.062	−0.13182	0.06787	−0.27083	0.00720
SGI	Equal variances not assumed			−1.852	17.12	0.081	−0.13182	0.07119	−0.28192	0.01829
DI	Equal variances assumed	8.713	0.006	0.003	28	0.997	0.00043	0.12578	−0.25722	0.25808
DI	Equal variances not assumed			0.003	15.87	0.997	0.00043	0.13272	−0.28110	0.28196
LEVI	Equal variances assumed	0.252	0.620	1.282	28	0.210	0.01093	0.00853	−0.00654	0.02840
LEVI	Equal variances not assumed			1.292	27.97	0.207	0.01093	0.00846	−0.00641	0.02827
SGAI	Equal variances assumed	3.047	0.092	1.007	28	0.322	0.63950	0.63475	−0.66072	1.93972
SGAI	Equal variances not assumed			1.078	15.22	0.298	0.63950	0.59297	−0.62275	1.90175
TATA	Equal variances assumed	3.595	0.068	−1.511	28	0.142	−0.09121	0.06036	−0.21486	0.03244
TATA	Equal variances not assumed			−1.608	16.72	0.127	−0.09121	0.05672	−0.21102	0.02860

Independent sample test
		Levene's test for equality of variances		t-test for equality of means
		F	Sig.	t	df	Sig. (2-tailed)	Mean difference	Std. error difference	95% confidence interval of the difference
		F	Sig.	t	df	Sig. (2-tailed)	Mean difference	Std. error difference	Lower	Upper
DSRI	Equal variances assumed	9.287	0.005	3.527	28	0.026	0.30084	0.57080	−0.86839	1.47007
DSRI	Equal variances not assumed			2.560	17.42	0.058	0.30084	0.53768	−0.83149	10.43317
GMI	Equal variances assumed	1.102	0.303	1.663	28	0.107	0.17128	0.10298	−0.03966	0.38222
GMI	Equal variances not assumed			1.691	27.70	0.102	0.17128	0.10130	−0.03633	0.37889
AQI	Equal variances assumed	4.876	0.036	1.315	28	0.199	0.01250	0.00951	−0.00698	0.03197
AQI	Equal variances not assumed			1.376	21.53	0.183	0.01250	0.00908	−0.00637	0.03136
SGI	Equal variances assumed	5.871	0.022	−1.942	28	0.062	−0.13182	0.06787	−0.27083	0.00720
SGI	Equal variances not assumed			−1.852	17.12	0.081	−0.13182	0.07119	−0.28192	0.01829
DI	Equal variances assumed	8.713	0.006	0.003	28	0.997	0.00043	0.12578	−0.25722	0.25808
DI	Equal variances not assumed			0.003	15.87	0.997	0.00043	0.13272	−0.28110	0.28196
LEVI	Equal variances assumed	0.252	0.620	1.282	28	0.210	0.01093	0.00853	−0.00654	0.02840
LEVI	Equal variances not assumed			1.292	27.97	0.207	0.01093	0.00846	−0.00641	0.02827
SGAI	Equal variances assumed	3.047	0.092	1.007	28	0.322	0.63950	0.63475	−0.66072	1.93972
SGAI	Equal variances not assumed			1.078	15.22	0.298	0.63950	0.59297	−0.62275	1.90175
TATA	Equal variances assumed	3.595	0.068	−1.511	28	0.142	−0.09121	0.06036	−0.21486	0.03244
TATA	Equal variances not assumed			−1.608	16.72	0.127	−0.09121	0.05672	−0.21102	0.02860