$t$

$\alpha =0$

$\alpha =0.4$

$\alpha =0.8$

0.10

[−1.1897, 1.3876]

[−0.7138, 0.8326]

[−0.2381, 0.2775]

020

[−1.2985, 1.6703]

[−0.7791, 1.0022]

[−0.2597, 0.3341]

0.30

[−1.3376, 1.8493]

[−0.8026, 1.1096]

[−0.2675, 0.3699]

0.40

[−1.3152, 1.9283]

[−0.7892, 1.1570]

[−0.2630, 0.3857]

0.50

[−1.2415, 1.9160]

[−0.7449, 1.1496]

[−0.2483, 0.3832]

0.60

[−1.1277, 1.8253]

[−0.6766, 1.0952]

[−0.2255, 0.3651]

0.70

[−0.9854, 1.6715]

[−0.5913, 1.0029]

[−0.1971, 0.3343]

0.80

[−0.8264, 1.4714]

[−0.4959, 0.8828]

[−0.1651, 0.2943]

0.90

[−0.6614, 1.2422]

[−0.3969, 0.7453]

[−0.1323, 0.2484]