MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN: 9781119256830
Author: Amos Gilat
Publisher: John Wiley & Sons Inc
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Fundamentals of Trigonometric Identities
Trigonometric Identities are the equalities that involve trigonometry functions and hold for all the values of variables given in the equation.
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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 or killed in a crash. Results are given in the accompanying table. Using a 0.05 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) 479 349 36 161 87 211 111 67 43 Click here to view the chi-square distribution table. Chi-square distribution table Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: Whether a crash occurs and helmet color are independent H: Whether a crash occurs and helmet color are dependent O B. Ho: Injuries and helmet color are dependent Area to the Right of the Critical Value Degrees of Freedom H1: Injuries and helmet color are independent 0.995 0.99 0.975 0.95 0.90 0.10 O C. Ho: Whether a crash occurs and helmet color are dependent 1 0.001 0.004 0.016 2.706 2 0.010 0.020 0.051 0.103 0.211 4.605 H,: Whether a crash occurs and helmet color are independent 0.072 0.207 3 0.115 0.216 0.352 0.584 6.251 O D. Ho: Injuries and helmet color are independent 4 0.297 0.484 0.711 1.064 7.779 0.412 0.554 0.831 1.145 1.610 9.236 H,: Injuries and helmet color are dependent 6 0.676 0.872 1.237 1.635 2.204 10.645 Compute the test statistic. 7 0.989 1.239 1.690 2.167 2.833 12.017 8 1.344 1.646 2.180 2.733 3.490 13.362 9 1.735 2.088 2.700 3.325 4.168 14.684 (Round to three decimal places as needed.) 10 2.156 2.558 3.247 3.940 4.865 15.987 Find the critical value(s). Print Done (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 sufficient evidence to warrant rejection of the claim that injuries are independent of helmet color.
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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 0.05 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) 479 349 36 161 87 211 111 67 43 Click here to view the chi-square distribution table. Chi-square distribution table Identify the null and alternative hypotheses. Choose the correct answer below. O A. Ho: Whether a crash occurs and helmet color are independent H: Whether a crash occurs and helmet color are dependent O B. Ho: Injuries and helmet color are dependent Area to the Right of the Critical Value Degrees of Freedom H1: Injuries and helmet color are independent 0.995 0.99 0.975 0.95 0.90 0.10 O C. Ho: Whether a crash occurs and helmet color are dependent 1 0.001 0.004 0.016 2.706 2 0.010 0.020 0.051 0.103 0.211 4.605 H,: Whether a crash occurs and helmet color are independent 0.072 0.207 3 0.115 0.216 0.352 0.584 6.251 O D. Ho: Injuries and helmet color are independent 4 0.297 0.484 0.711 1.064 7.779 0.412 0.554 0.831 1.145 1.610 9.236 H,: Injuries and helmet color are dependent 6 0.676 0.872 1.237 1.635 2.204 10.645 Compute the test statistic. 7 0.989 1.239 1.690 2.167 2.833 12.017 8 1.344 1.646 2.180 2.733 3.490 13.362 9 1.735 2.088 2.700 3.325 4.168 14.684 (Round to three decimal places as needed.) 10 2.156 2.558 3.247 3.940 4.865 15.987 Find the critical value(s). Print Done (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 sufficient evidence to warrant rejection of the claim that injuries are independent of helmet color.
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