A study was conducted of 531 persons injured in bicycle crashes, and randomly selected sample result
Question: A study was conducted of 531 persons injured in bicycle crashes, and randomly selected sample results are summarized in the accompanying table. The TI-83 Plus calculator 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 prevent facial injuries in a crash?
Helmet Worn | No Helmet | |
Facial injuries received | 30 | 182 |
All injuries nonfacial | 83 | 236 |
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Solution: The solution consists of 2 pages
Deliverables: Word Document![](/images/msword.png)
Deliverables: Word Document
![](/images/msword.png)