SOLUTION: B. An automobile association claims that 54% of fatal car/truck accidents are caused by driver
error. A researcher studies 30 randomly selected accidents and finds that 14 were ca
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error. A researcher studies 30 randomly selected accidents and finds that 14 were ca
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Question 835714: B. An automobile association claims that 54% of fatal car/truck accidents are caused by driver
error. A researcher studies 30 randomly selected accidents and finds that 14 were caused by
driver error. Using 0.02 , can the association’s claim be refuted? Use the P-value
method.
C. A researcher claims that the average score in the 2012 final exam of ST130 students is at
least 69%. A random sample of 10 students is selected, and the scores in percentage are
shown.
48 11 84 72 15
52 35 63 61 58
At = 0.025, is there enough evidence to reject the claim? Answer by new_user(6) (Show Source):
(