Question

MATH 1530-263 Test: Review for Module 2 Exam This Test: 20 3 of 20 (17 complete) This Question: 1 pt The ages of the winners of a cycling tournament are approximately bell shaped The mean age is 28.1 years, with a standard deviation of 3.7 years. The winner in one recent year was 30 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 a z-score (Type an integer or decimal rounded to two decimal places as needed) (b) Interpret the results the mean An age of 30 is about standard deviations) (Type an integer or decimal rounded to two decimal places as needed) (c) Determine whether the age is unusual Choose the corect answer below OA. No, this value is not unusual A z-score outside of the range from -2 to 2 is not unusual O B. Yes, this value is unusual. A z-score outside of the range from -2 to 2 is unusual Click to select your answer(s).

Answer 1

Solution:

We are given:

u= 28.1, 0 = 3.7

(a)

-μ 30 – 28.1 - = 0.51 3,7

(a) Transform the age to a score Z 0.51 (Type an integer or decimal rounded to two decimal places as needed] (b) Interpret the results.. 0.51 above An age of 30 is about standard deviations) the mean (Type an integer or decimal rounded to two decimal places as needed) icj Determine whether the age is unusual Choose the comed answer below No, this value is not unusual. A Z-score outside of the range from -2 to 2 is unusual O A. No this välur is not unusual AZ-score outside of the range from = 2 10 2 is not unusu O B. Yes, this value is unusual A 2-score outside of the range from - 2 to 2 is unusual