Question

The Thundering Herd, an amusement park ride, is not open to patrons less than 54" tall. If the mean height of park patrons is 68" with a standard deviation of 12 inches, what percent of the patrons will not be able to use this ride?

The z for 54" = -____
(The negative means 54" is less than the mean of 68." Do not enter a negative percent.)

The percentage for the above z is ___%

This is the percentage of patrons between 54" and 68". The percentage for ALL patrons above 68" is _____%
(This corresponds to z = +4.)

So the percentage of patrons above 54" is___%

Answer 1

z for 54 = (54-68)/12=1.1667 appx

Answer 2

use normal table to find the percentage