Question
The ages of the winners of a cycling tournament are approximatelybell-shaped. The mean age is 27.6 years, with a standard deviation of 3.4 years. The
The ages of the winners of a cycling tournament are approximatelybell-shaped. The mean age is 27.6 years, with a standard deviation of 3.4 years. The winner in one recent year was 29 years old.
(a) Transform the age to az-score.
(b) Interpret the results.
(c) Determine whether the age is unusual.
(a) Transform the age to az-score.
z=______
(Type an integer or decimal rounded to two decimal places asneeded.)
(b) Interpret the results.
An age of 29 is ____ standarddeviation(s) (below/above) the mean.
(Type an integer or decimal rounded to two decimal places asneeded.)
(c) Determine whether the age is unusual. Choose the correct answer below.
A. No,thisvalueisnotunusual. Az-score outsideoftherangefrom2to2isnot unusual.
B. No,thisvalueisnotunusual. Az-score between2and2isnotunusual.
C. Yes,thisvalueisunusual. Az-score between2and2isunusual.
D. Yes,thisvalueisunusual. Az-score
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