Time Remaining: 00.52 38 Submit Test Test: Exam 1, Chapters 1 and 2 This Test: 3

Question

Time Remaining: 00.52 38 Submit Test Test: Exam 1, Chapters 1 and 2 This Test: 30 pts possible This Question: 1 18 of 30 (17 complete) The ages of the winers af a cycling tounament are approximately bell-shaped. The mean age is 28 8 years, with a standard deiation of 3.5 years. The winner in one recent year was 33 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. Type an integer of decimal rounded to two decimal places as needed) (b) Interpret the results An age of 33 as about standard devationo the mean (Type an integer or decimal rounded to two decimal places as needed.) (c) Determine whether the age is unusual. Choose the correct answer below O A. No. this value is not unusual A z-score between -2 and 2 is not unusual. O B. No, this value is not unusual. A z-score outside of the range from -2 to 2 is not unusual. ° C. Yes, this value is unusual A z-score between-2 and 2 is unusual. O o. Yes, this value is unusual. A z-score outside of the range from -2 to 2 is unusual Cick to select your answer(s) avascriptdoexercise)

Explanation / Answer

a)z =(X-mean)/std deviaiton =(33-28.8)/3.5=1.2

b)an age of 33 is about 1.2 std deviaiton above the mean

c)

option A is correct

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