Find each of the following percentile points under the normal curve.
1. P99
2. P90
3. P68
4. P40
5. P32
Solution:
From z-score percentile table for normal distribution:
1. P99: 2.326
2. P90: 1.282
3. P68: 0.468
4. P40: -0.253
5. P32: -0.468