A student has computed that it takes an average mean of 16

Reference no: EM13615436

A student has computed that it takes an average (mean) of 16 minutes with a standard deviation of 3 minutes to drive from home, park the car, and walk to an early class. One day it took the student 21 minutes to get to class. How many standard deviations from the average is that (find the corresponding z-score)? Is the z-score positive or negative and why?

Reference no: EM13615436

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