**Hypothesis Test Conclusion****Question:**What is the conclusion based on the hypothesis test?**Answer:**There is sufficient evidence to warrant rejection of the claim that injuries are independent of helmet color.In this context, the null hypothesis (\(H_0\)) posits that injuries are independent of helmet color. The conclusion reflects a decision to reject this null hypothesis based on the collected data and the hypothesis test analysis. 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) | 466 | 336 | 29 | 165 | 103 || Cases (injured or killed) | 203 | 109 | 8 | 70 | 50 |[Click here to view the chi-square distribution table.](#)### Identify the null and alternative hypotheses. Choose the correct answer below.- A. \( H_0 \): Injuries and helmet color are independent \( H_1 \): Injuries and helmet color are dependent - B. \( H_0 \): Whether a crash occurs and helmet color are independent \( H_1 \): Whether a crash occurs and helmet color are dependent - C. \( H_0 \): Injuries and helmet color are dependent \( H_1 \): Injuries and helmet color are independent - D. \( H_0 \): Whether a crash occurs and helmet color are dependent \( H_1 \): Whether a crash occurs and helmet color are independent ### Compute the test statistic.- [ ] (Round to three decimal places as needed.)### Find the critical value(s).- [ ] ### Explanation of TableThe table provided shows the distribution of motorcycle helmet colors among two groups: those not injured (controls) and those injured or killed (cases). This data will be used to perform a chi-square test to determine if there is a statistically significant relationship between helmet color and injury outcome. Each column represents a different helmet color, and the rows divide the data into individuals who were controls or cases.

There are two categorical variables which are Injuries and Helmet color. Injuries have 2 types and…

Answered: A case-control (or retrospective) study…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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The Bureau of Labor Statistics reports that the official unemployment rate for Black people was 10.4% and 4.7% for White people in February 2015. Select all correct answers for this question. O The samples of white and black people are independent. The explanatory variable is the unemployment rate. The response variable is the unemployment rate. The response variable is race.
Need C and D
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. D Black Color of Helmet Yellow 32 Blue White 331 Controls (not injured) Red 159 482 100 Cases (injured or 211 109 8 65 47 killed) Click here to view the 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 dependent H₁: Whether a crash occurs and helmet color are independent OB. Ho: Injuries and helmet color are dependent H₁: Injuries and helmet color are independent OC. Ho: Whether a crash occurs and helmet color are independent H₁: Whether a crash occurs and helmet color are dependent O D. Ho: Injuries and helmet color are independent H₁: Injuries…
12.
Is there an association between hair color and body type? The table below shows the results of a researcher's observations of randomly selected people. Frequencies of Hair Colors for Various Body Types Blonde Brunette Red Head Short and Slender 81 87 50 Short and Pudgy 80 98 78 Tall and Slender 57 113 79 Tall and Heavy 50 101 71 R vector Data: 81,80,57,50,87,98,113,101,50,78,79,71 Contigency Table What can be concluded at the a = 0.01 significance level? a. What is the correct statistical test to use? Select an answer b. What are the null and alternative hypotheses? Ho: Select an answer H: Select an answer c. The test-statistic for this data = (Please show your answer to three decimal places.)
need C and D please
The accompanying table shows results of challenged referee calls in a major tennis tournament. Use a 0.05 significance level to test the claim that the gender of the tennis player is independent of whether a call is overturned. Was the Challenge to the Call Successful? Yes No Men 246 790 Women 351 550
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) 494 343 27 168 99 Cases (injured or killed) 210 107 6 71 47
Does the type of instruction in a college statistics class (either lecture or self-paced) influence students’ performance, as measured by the number of quizzes successfully completed during the semester? Twelve students were recruited for the study. Students received the lecture instruction or a self-paced instruction. The total number of quizzes completed during teach type of instruction appear below.
Answer j and k
Personality preferences for a random sample of 519 people in the listed professions are shown in the following table. T refers to THINKING and F refers to FEELING. Use the chi-square test to determine if the listed occupations and personality preferences are independent at the 0.01 level of significance. Occupation T F Row Total Clergy 57 91 148 M.D. 77 82 159 Lawyer 118 94 212 Column Total 252 267 519
I need help filling in the following blanks based on the attached table: The median frequency of attendance is [Blank]. This means [Blank] percent of people in this sample attend [Blank] or less. The 36th percentile is [Blank]. That means [Blank] percent of people in the same area attend [Blank] or less frequently. The 65th percentile is [Blank]. That means [Blank] percent of people in the same area attend [Blank] or less frequently. frequently.

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