Table 10 Result of t -test for the year... | Emerald Publishing

Table 10

Result of t-test for the year 2017

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	2.580	0.119	−4.15	28	0.000	−0.85517	0.20604	−1.27722	−0.43312
DSRI	Equal variances not assumed			−3.37	10.42	0.007	−0.85517	0.25364	−1.41723	−0.29311
GMI	Equal variances assumed	1.576	0.220	−0.710	28	0.483	−0.27153	0.38231	−1.05465	0.51159
GMI	Equal variances not assumed			−1.07	22.25	0.296	−0.27153	0.25374	−0.79741	0.25436
AQI	Equal variances assumed	12.222	0.002	−1.44	28	0.159	−0.41533	0.28717	−1.00357	0.17292
AQI	Equal variances not assumed			−0.924	8.003	0.382	−0.41533	0.44929	−1.45132	0.62067
SGI	Equal variances assumed	0.000	0.989	−0.700	28	0.490	−0.02386	0.03409	−0.09368	0.04597
SGI	Equal variances not assumed			−0.744	17.56	0.467	−0.02386	0.03206	−0.09133	0.04362
DI	Equal variances assumed	3.615	0.068	0.545	28	0.590	0.04604	0.08447	−0.12698	0.21906
DI	Equal variances not assumed			0.391	8.918	0.705	0.04604	0.11786	−0.22094	0.31303
LEVI	Equal variances assumed	0.775	0.386	−0.210	28	0.835	−0.00076	0.00360	−0.00814	0.00662
LEVI	Equal variances not assumed			−0.263	25.97	0.795	−0.00076	0.00288	−0.00667	0.00516
SGAI	Equal variances assumed	6.498	0.017	0.475	28	0.639	0.02042	0.04302	−0.06770	0.10853
SGAI	Equal variances not assumed			0.617	27.45	0.542	0.02042	0.03307	−0.04739	0.08822
TATA	Equal variances assumed	0.315	0.579	−0.937	28	0.357	−0.03129	0.03341	−0.09972	0.03713
TATA	Equal variances not assumed			−1.26	27.99	0.215	−0.03129	0.02469	−0.08187	0.01928

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	2.580	0.119	−4.15	28	0.000	−0.85517	0.20604	−1.27722	−0.43312
DSRI	Equal variances not assumed			−3.37	10.42	0.007	−0.85517	0.25364	−1.41723	−0.29311
GMI	Equal variances assumed	1.576	0.220	−0.710	28	0.483	−0.27153	0.38231	−1.05465	0.51159
GMI	Equal variances not assumed			−1.07	22.25	0.296	−0.27153	0.25374	−0.79741	0.25436
AQI	Equal variances assumed	12.222	0.002	−1.44	28	0.159	−0.41533	0.28717	−1.00357	0.17292
AQI	Equal variances not assumed			−0.924	8.003	0.382	−0.41533	0.44929	−1.45132	0.62067
SGI	Equal variances assumed	0.000	0.989	−0.700	28	0.490	−0.02386	0.03409	−0.09368	0.04597
SGI	Equal variances not assumed			−0.744	17.56	0.467	−0.02386	0.03206	−0.09133	0.04362
DI	Equal variances assumed	3.615	0.068	0.545	28	0.590	0.04604	0.08447	−0.12698	0.21906
DI	Equal variances not assumed			0.391	8.918	0.705	0.04604	0.11786	−0.22094	0.31303
LEVI	Equal variances assumed	0.775	0.386	−0.210	28	0.835	−0.00076	0.00360	−0.00814	0.00662
LEVI	Equal variances not assumed			−0.263	25.97	0.795	−0.00076	0.00288	−0.00667	0.00516
SGAI	Equal variances assumed	6.498	0.017	0.475	28	0.639	0.02042	0.04302	−0.06770	0.10853
SGAI	Equal variances not assumed			0.617	27.45	0.542	0.02042	0.03307	−0.04739	0.08822
TATA	Equal variances assumed	0.315	0.579	−0.937	28	0.357	−0.03129	0.03341	−0.09972	0.03713
TATA	Equal variances not assumed			−1.26	27.99	0.215	−0.03129	0.02469	−0.08187	0.01928