Sector

t-test for Equality of Means

t

df

p-value (2-tailed)

Mean Difference

Std. Error Difference

95% Confidence Interval of the Difference

Lower

Upper

AGRICULTURE

tax burden (before and after tax reforms

−8.623

6

0.000***

−0.19799

0.02296

−0.25418

−0.14181

CONGLOMERATE

0.512

6

0.627

0.07421

0.14500

−0.28060

0.42903

CONSTRUCTION

−0.638

6

0.547

−0.01868

0.02928

−0.09033

0.05296

CONSUMER GOODS

−1.843

6

0.115

−0.04423

0.02399

−0.10293

0.01448

FIN SERVICES

0.707

6

0.506

0.04575

0.06468

−0.11252

0.20402

HEALTH

2.908

6

0.027**

0.28918

0.09945

0.04583

0.53253

INDUSTRIAL GOODS

−1.432

6

0.202

−0.58489

0.40842

−1.58426

0.41447

INFOR

0.504

6

0.633

0.05733

0.11386

−0.22127

0.33593

NAT RESOURCES

−2.902

6

0.027**

−0.19975

0.06883

−0.36817

−0.03133

OIL AND GAS

2.262

6

0.064*

0.03831

0.01694

−0.00314

0.07976

SERVICES

−0.048

6

0.963

−0.00614

0.12808

−0.31954

0.30725