A case-control (or retrospective) study was conducted to investigate a relationship between the colors of helmets worn by moto 0.01 significance level, test the claim that injuries are independent of helmet color. Color of Helmet Black White Yellow Red Blue Controls (not injured) Cases (injured or killed) 483 200 354 111 32 9. 167 70 90 44 Click here to view the chi-square distribution table. O B. Ho: Whether a crash occurs and helmet color are dependent H,: Whether a crash occurs and helmet color are independent OC. Ho: Injuries and helmet color are independent H: Injuries and helmet color are dependent O D. Ho: Whether a crash occurs and helmet color are independent H,: Whether a crash occurs and helmet color are dependent Compute the test statistic. (Round to three decimal places as needed.) Find the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) What is the conclusion based on the hypothesis test? Ho. There V sufficient evidence to warrant rejection of the claim that injuries are independent of helmet color.

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 4BGP
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A case-control (or retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured a
0.01 significance level, test the claim that injuries are independent of helmet color.
Color of Helmet
Black
White
Yellow
Red
Blue
Controls (not injured)
Cases (injured or
killed)
483
354
32
167
90
200
111
9.
70
44
Click here to view the chi-square distribution table.
O B. Ho: Whether a crash occurs and helmet color are dependent
H,: Whether a crash occurs and helmet color are independent
O C. Ho: Injuries and helmet color are independent
H,: Injuries and helmet color are dependent
O D. Hn: Whether a crash occurs and helmet color are independent
H,: Whether a crash occurs and helmet color are dependent
Compute the test statistic.
(Round to three decimal places as needed.)
Find the critical value(s).
(Round to three decimal places as needed. Use a comma to separate answers as needed.)
What is the conclusion based on the hypothesis test?
V Ho. There
sufficient evidence to warrant rejection of the claim that injuries are independent of helmet color.
Transcribed Image Text:A case-control (or retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured a 0.01 significance level, test the claim that injuries are independent of helmet color. Color of Helmet Black White Yellow Red Blue Controls (not injured) Cases (injured or killed) 483 354 32 167 90 200 111 9. 70 44 Click here to view the chi-square distribution table. O B. Ho: Whether a crash occurs and helmet color are dependent H,: Whether a crash occurs and helmet color are independent O C. Ho: Injuries and helmet color are independent H,: Injuries and helmet color are dependent O D. Hn: Whether a crash occurs and helmet color are independent H,: Whether a crash occurs and helmet color are dependent Compute the test statistic. (Round to three decimal places as needed.) Find the critical value(s). (Round to three decimal places as needed. Use a comma to separate answers as needed.) What is the conclusion based on the hypothesis test? V Ho. There sufficient evidence to warrant rejection of the claim that injuries are independent of helmet color.
A case-control (or retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash. Results are given in the accompanying table. Using a
0.01 significance level, test the claim that injuries are independent of helmet color.
Color of Helmet
Black
White
Yellow
Red
Blue
Controls (not injured)
Cases (injured or
killed)
483
200
354
32
167
90
111
9.
70
44
Click here to view the chi-square distribution table.
Identify the null and alternative hypotheses. Choose the correct answer below.
O A. Ho: Injuries and helmet color are dependent
H,: Injuries and helmet color are independent
O B. Ho: Whether a crash occurs and helmet color are dependent
H: Whether a crash occurs and helmet color are independent
O C. Ho: Injuries and helmet color are independent
H,: Injuries and helmet color are dependent
O D. Ho: Whether a crash occurs and helmet color are independent
H,: Whether a crash occurs and helmet color are dependent
Compute the test statistic.
(Round to three decimal places as needed.)
Find the critical value(s).
(Round to three decimal nlaces as needed. Use a comma to senarate answers as needed.)
Transcribed Image Text:A case-control (or retrospective) study was conducted to investigate a relationship between the colors of helmets worn by motorcycle drivers and whether they are injured or killed in a crash. Results are given in the accompanying table. Using a 0.01 significance level, test the claim that injuries are independent of helmet color. Color of Helmet Black White Yellow Red Blue Controls (not injured) Cases (injured or killed) 483 200 354 32 167 90 111 9. 70 44 Click here to view the chi-square distribution table. Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: Injuries and helmet color are dependent H,: Injuries and helmet color are independent O B. Ho: Whether a crash occurs and helmet color are dependent H: Whether a crash occurs and helmet color are independent O C. Ho: Injuries and helmet color are independent H,: Injuries and helmet color are dependent O D. Ho: Whether a crash occurs and helmet color are independent H,: Whether a crash occurs and helmet color are dependent Compute the test statistic. (Round to three decimal places as needed.) Find the critical value(s). (Round to three decimal nlaces as needed. Use a comma to senarate answers as needed.)
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