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(Answered)-Black White Yellow Red Blue Controls (not injured) 488 348 25 151 - (2025 Updated Original AI-Free Solution

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Academic Level: Undergrad. (yrs 3-4)

Paper Format: APA

Pages: 5 Words: 1375
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Question



BlackWhiteYellowRed?Blue
Controls (not injured)4883482515176
Cases (injured or killed)20110876338

A case-control (or retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drives and whether they are injured or killed in a crash. Results are given in the table. Using a .05 significance level, test the claim that injures are independent of helmet color.

Compute the test statistic _____
Find the critical value(s) _____
What is the conclusion based on the hypothesis test?

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