how to find the critical value for an alpha level .001 for a 2-tailed test?
Solution :
Given that,
This is the two tailed test .
= 0.001
/ 2 = 0.001 / 2 = 0.0005
P(Z > z) = 0.001
1 - P(Z < z) = 0.0005
P(Z < z) = 1 - 0.0005
P(Z < z) = 0.9995
P(Z < 3.29) = 0.9995
Critical value = 3.29
how to find the critical value for an alpha level .001 for a 2-tailed test?
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