TA 220 Sullvan Se-7521 2425 Test: Test Two (chapters 3, 4) 33322 Time Limit: 01.
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Question
TA 220 Sullvan Se-7521 2425 Test: Test Two (chapters 3, 4) 33322 Time Limit: 01.300o Submit Test on: 1 pt This Test: 32 pts The mean fnish Sme Sor a yearly amaleur auto race was 187 25 minutes with a standaid deviation of 0 332 minute The winning car diven by Chvls frnished in 186 81 minues The previous years race had a meas fnishing time of 110 4 with a standard deviation of 0 134 mnute The winning car that year, driven by Suan Srished in 10 08 minutes Find their respective 2-sces Who had the more convincing victory? Chis had a firish time with a z-scare of (Round to two decimal places as needed) Which driver had a more convecing victory? O A. Chris a more convincing victory becaue of a lower 2-sco O B. Chris a more convincing victory because of a higher z-scr O C. Susan had a more D. Susan had a rmore convincing victory beON" of a low scare victory because of a higher a-sooreExplanation / Answer
as we know that z score =(X-mean)/std deviation
hence Chris Z score =(186.81-187.25)/0.332=-1.33
and Susan Z score =(110.08-110.4)/0.134=-2.39
option D is correct
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