Table 5 Result of t -test for the year... | Emerald Publishing

Table 5

Result of t-test for the year 2012

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	4.087	0.053	−3.75	28	0.001	−0.73574	0.19579	−1.13680	−0.33469
DSRI	Equal variances not assumed			−4.29	27.96	0.000	−0.73574	0.17124	−1.08653	−0.38496
GMI	Equal variances assumed	0.077	0.784	0.618	28	0.541	0.05659	0.09150	−0.13084	0.24402
GMI	Equal variances not assumed			0.634	22.60	0.533	0.05659	0.08929	−0.12830	0.24148
AQI	Equal variances assumed	4.478	0.043	3.525	28	0.001	0.03036	0.00861	0.01272	0.04800
AQI	Equal variances not assumed			2.999	13.17	0.010	0.03036	0.01012	0.00852	0.05220
SGI	Equal variances assumed	2.938	0.098	−1.68	28	0.103	−0.08311	0.04930	−0.18410	0.01788
SGI	Equal variances not assumed			−1.88	27.46	0.070	−0.08311	0.04412	−0.17357	0.00734
DI	Equal variances assumed	7.387	0.011	−2.78	28	0.045	−0.22423	0.12550	−0.48130	0.03284
DI	Equal variances not assumed			−2.28	21.82	0.033	−0.22423	0.09825	−0.42808	−0.02038
LEVI	Equal variances assumed	1.972	0.171	0.943	28	0.354	0.00705	0.00748	−0.00827	0.02236
LEVI	Equal variances not assumed			0.766	11.78	0.459	0.00705	0.00920	−0.01304	0.02714
SGAI	Equal variances assumed	0.312	0.581	0.902	28	0.375	0.10855	0.12034	−0.13796	0.35505
SGAI	Equal variances not assumed			0.783	13.89	0.447	0.10855	0.13857	−0.18888	0.40597
TATA	Equal variances assumed	2.004	0.168	−1.56	28	0.128	−0.04367	0.02783	−0.10068	0.01335
TATA	Equal variances not assumed			−1.25	11.45	0.233	−0.04367	0.03469	−0.11965	0.03231

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	4.087	0.053	−3.75	28	0.001	−0.73574	0.19579	−1.13680	−0.33469
DSRI	Equal variances not assumed			−4.29	27.96	0.000	−0.73574	0.17124	−1.08653	−0.38496
GMI	Equal variances assumed	0.077	0.784	0.618	28	0.541	0.05659	0.09150	−0.13084	0.24402
GMI	Equal variances not assumed			0.634	22.60	0.533	0.05659	0.08929	−0.12830	0.24148
AQI	Equal variances assumed	4.478	0.043	3.525	28	0.001	0.03036	0.00861	0.01272	0.04800
AQI	Equal variances not assumed			2.999	13.17	0.010	0.03036	0.01012	0.00852	0.05220
SGI	Equal variances assumed	2.938	0.098	−1.68	28	0.103	−0.08311	0.04930	−0.18410	0.01788
SGI	Equal variances not assumed			−1.88	27.46	0.070	−0.08311	0.04412	−0.17357	0.00734
DI	Equal variances assumed	7.387	0.011	−2.78	28	0.045	−0.22423	0.12550	−0.48130	0.03284
DI	Equal variances not assumed			−2.28	21.82	0.033	−0.22423	0.09825	−0.42808	−0.02038
LEVI	Equal variances assumed	1.972	0.171	0.943	28	0.354	0.00705	0.00748	−0.00827	0.02236
LEVI	Equal variances not assumed			0.766	11.78	0.459	0.00705	0.00920	−0.01304	0.02714
SGAI	Equal variances assumed	0.312	0.581	0.902	28	0.375	0.10855	0.12034	−0.13796	0.35505
SGAI	Equal variances not assumed			0.783	13.89	0.447	0.10855	0.13857	−0.18888	0.40597
TATA	Equal variances assumed	2.004	0.168	−1.56	28	0.128	−0.04367	0.02783	−0.10068	0.01335
TATA	Equal variances not assumed			−1.25	11.45	0.233	−0.04367	0.03469	−0.11965	0.03231