Table 2.

The values of the power of two tests

$I_{{\mu }_U}$	Existing Test	The Proposed Test
	1 − β	1 − β
0.05	0.96	0.97
0.1	0.94	0.96
0.2	0.94	0.96
0.3	0.91	0.97
0.4	0.93	0.95
0.5	0.89	0.95
0.75	0.89	0.92
1	0.93	0.96