Mathematics: All tutors that are employed at a local college must take a test and must score in the top 20%. if the scores are normally distributed with a mean of 78 and a standard deviation of 5, what is the cutoff score to be hired?

.9442 1/9 = 2.1117/6 = 1.1672.111-1.167= .944...

All tutors that are employed at a local college must

ellettm

14.03.2022

To solve this problem, we use the z statistic with formula:

z = (x – u) / s

x = s z + u

First we find the value of z at P = top 20%

z = 0.84

So the cut-off is:

x = 5 * 0.84 + 78

x = 82.2 (ANSWER)

0,0(0 оценок)