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Category > Statistics Posted 28 Jul 2017 My Price 6.00

Testing Effectiveness of Bicycle Helmets

Testing Effectiveness of Bicycle Helmets A study was conducted of 531 persons in- jured in bicycle crashes, and randomly selected sample results are summarized in the accompanying table. The TI-83 Plus results also are shown. At the 0.05 significance level, test the claim that wearing a helmet has no effect on whether facial injuries are received. Based on these results, does a helmet seem to be effective in helping to pre- vent facial injuries in a crash?

  TI-83 Plus  

 

Helmet Worn

No Helmet

Facial injuries received

30

182

All injuries nonfacial

83

236

Based on data from “A Case-Control Study of the Effectiveness of Bi- cycle Safety Helmets in Preventing Facial Injury,” by Thompson, Thompson, Rivara, and Wolf, American Journal of Public Health, Vol. 80, No. 12.

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Status NEW Posted 28 Jul 2017 11:07 AM My Price 6.00

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Attachments

file 1501243209-1402859_1_636361795368571092_Transtutors----Vidya-Naik-210717.docx preview (531 words )
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