A population of values has a normal distribution with μ = 158.3
and σ = 72.6 . You intend to draw a random sample of size n = 39
.
Find P78, which is the score separating the bottom 78% scores
from the top 22% scores. P78 (for single values) =
Find P78, which is the mean separating the bottom 78% means from
the top 22% means. P78 (for sample means) =