Critical Z-value 0.01

Given α = 0.01

Calculate the right-tailed and left-tailed critical value for Z

Since α = 0.01, the area under the curve is 1 - α → 1 - 0.01 = 0.99

Our critical z value is 2.3263

Our critical z-value = -2.3263

z	Probability (Area under Curve)
-2.3263	0.01
-2.0537	0.02
-1.8808	0.03
-1.7507	0.04
-1.6449	0.05
-1.5548	0.06
-1.4758	0.07
-1.4051	0.08
-1.3408	0.09
-1.2816	0.10
-1.2265	0.11
-1.175	0.12
-1.1264	0.13
-1.0803	0.14
-1.0364	0.15
-0.9945	0.16
-0.9542	0.17
-0.9154	0.18
-0.8779	0.19
-0.8416	0.20
-0.8064	0.21
-0.7722	0.22
-0.7388	0.23
-0.7063	0.24
-0.6745	0.25
-0.6433	0.26
-0.6128	0.27
-0.5828	0.28
-0.5534	0.29
-0.5244	0.30
-0.4959	0.31
-0.4677	0.32
-0.4399	0.33
-0.4125	0.34
-0.3853	0.35
-0.3585	0.36
-0.3319	0.37
-0.3055	0.38
-0.2793	0.39
-0.2533	0.40
-0.2275	0.41
-0.2019	0.42
-0.1764	0.43
-0.151	0.44
-0.1257	0.45
-0.1004	0.46
-0.0753	0.47
-0.0502	0.48
-0.0251	0.49
0	0.50
0.0251	0.51
0.0502	0.52
0.0753	0.53
0.1004	0.54
0.1257	0.55
0.151	0.56
0.1764	0.57
0.2019	0.58
0.2275	0.59
0.2533	0.60
0.2793	0.61
0.3055	0.62
0.3319	0.63
0.3585	0.64
0.3853	0.65
0.4125	0.66
0.4399	0.67
0.4677	0.68
0.4959	0.69
0.5244	0.70
0.5534	0.71
0.5828	0.72
0.6128	0.73
0.6433	0.74
0.6745	0.75
0.7063	0.76
0.7388	0.77
0.7722	0.78
0.8064	0.79
0.8416	0.80
0.8779	0.81
0.9154	0.82
0.9542	0.83
0.9945	0.84
1.0364	0.85
1.0803	0.86
1.1264	0.87
1.175	0.88
1.2265	0.89
1.2816	0.90
1.3408	0.91
1.4051	0.92
1.4758	0.93
1.5548	0.94
1.6449	0.95
1.7507	0.96
1.8808	0.97
1.96	0.975
-1.96	0.025
2.0537	0.98
2.3263	0.99
-2.5758	0.005
2.5758	0.995

Right tail value = 2.3263
Left tail value = -2.3263

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