Answer
z = 2.33
Work Step by Step
Here α = 0.01
Since the test is right tailed, we have:
$P(Z > z_{α}) = 0.01$
The critical value will be given by:
$P(Z < z_{α}) = 1 - Z > z_{α}$
= 1 - 0.01 = 0.99
Using Table V of the book, we have:
z = 2.33
