Answer:
72.48
Step-by-step explanation:
Knowing that the z value has the following equation:
z = (x - m) / d
Let x be the cut-off point, m the arithmetic mean and d the standard deviation, we want to solve for the cut-off point so it would look like this:
x = d * z + m
d = 8
m = 62
We calculate z using the attached normal distribution table, we look for when z is 0.85, and we can see that in 0.8508 the value is 1.04.
So we have to:
x = 62 * 1.04 + 8 = 72.48
In other words, the cut point is approximately 72.5
