MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Question
The ages of the winners of a cycling tournament are approximately bell-shaped. The mean age is
27.1
years, with a standard deviation of
3.7
years. The winner in one recent year was
31
years old.(a) Transform the age to a z-score.
(b) Interpret the results.
(c) Determine whether the age is unusual.
(a) Transform the age to a z-score.
A) Z score
(Type an integer or decimal rounded to two decimal places as needed.)
(b) Interpret the results.
An age of
standard deviation(s)
the mean.
31
is aboutstandard deviation(s)
▼
above
below
(Type an integer or decimal rounded to two decimal places as needed.)
(c) Determine whether the age is unusual. Choose the correct answer below.
.Yes, this value is unusual.
A z-score outside of the range from minus 2 to 2 is unusual.outside of the range from −2 to 2 is unusual.
No, this value is not unusual.
A z-score
outside of the range from minus 2 to 2 is notoutside of the range from −2 to 2 is not
unusualYes, this value is unusual.
A z-score
between minus 2 and 2 is unusual.between −2 and 2 is unusual.
nothingNo, this value is not unusual.
A z-score between minus 2 and 2 is not unusual.Expert Solution
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