The time required to finish a test is normally distributed with a mean of 60 minutes and a standard deviation of 10 minutes. What is the z-Score for a student who finishes the test in 45 minutes?
1 Answer
Apr 29, 2018
Explanation:
Since we know the time required to finish the test is normally distributed, we can find the
The formula for a
#z = (45 - 60)/10#
#z = -1.5#
The student's time is