Question

Find the z-score such that the area under the standard normal curve to the right is 0.10.

a. -1.28
b. 0.5398
c. 0.8159
d. 1.28

Answer 1

Explanation:

My z-score tables are set up to show the area to the LEFT
so you will need to find the z-score that is 1-.10 = .90

which , by looking at the tables is z-score = +1.28