A survey found that women's heights are normally distributed with mean
63.763.7
in. and standard deviation
3.43.4
in. The survey also found that men's heights are normally distributed with mean
69.169.1
in. and standard deviation
3.63.6
in. Most of the live characters employed at an amusement park have height requirements of a minimum of
5656
in. and a maximum of
6464
in. Complete parts (a) and (b) below.
a. Find the percentage of men meeting the height requirement. What does the result suggest about the genders of the people who are employed as characters at the amusement park?
= 69.1
= 3.6
To find P(56 < X < 64):
For X = 56:
Z = (56 - 69.1)/3.6
= - 3.6389
By Technology, Cumulative Area Under Standard Normal Curve = 0.0001
For X = 64:
Z = (64 - 69.1)/3.6
= - 1.4167
By Technology, Cumulative Area Under Standard Normal Curve = 0.0783
So
P(56 < X < 64):=0.0783 - 0.0001 = 0.0782 =7.82%
So,
Answer is:
7.82%
Since the percentage of men meeting the height requirement is only 7.82%, the result suggests that most of the people who are employed as characters at the amusement park are women.
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