Question

What is the value of zo (zo being a certain value of a standard normal variable z) if p(z < zo) = 0.0054, considering that zo must be negative?

Answer 1

HI,

Explanation:

- z0 is positive.

p(Z<-z0)=1-0.0054=0.9946 => -z0=2.62 (from table)

z0=-2.62