A traffic safety company publishes reports about motorcycle fatalities and helmet use. In the first accompanying data table, the distribution shows the proportion offatalities by location of injury for motorcycle accidents. The second data table shows the location of injury and fatalities for 2062 riders not wearing a helmet. Completeparts (a) and (b) below.Click the icon to view the tables.(Round to two decimal places as needed.)What is the P-value of the test?P-value = (Round to three decimal places as needed.)Based on the results, does the distribution of fatal injuries for riders not wearing a helmet follow the distribution for all other riders at a significance level of a = 0.01?O A. Do not reject Ho. There is sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet follows the distribution for all riders.B. Reject Ho. There is not sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet follows the distribution for all riders.O C. Do not reject Ho. There is not sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet does not follow the distribution for allriders.O D. Reject Ho. There is sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet does not follow the distribution for all riders.(b) Compare the observed and expected counts for each category. What does this information tell you?A. Motorcycle fatalities from head injuries occur less frequently for riders not wearing a helmet.B. Motorcycle fatalities from thorax injuries occur more frequently for riders not wearing a helmet.O C. Motorcycle fatalities from head injuries occur more frequently for riders not wearing a helmet. Distribution of fatalities by location of injuryProportion of fatalities by location of injury for motorcycle accidentsAbdomen/Location ofMultipleFull data setHeadNeckThoraxLumbar/injurylocationsSpineProportion0.5700.3100.0300.0600.030Location of injury and fatalities for 2062 riders not wearing a helmetAbdomen/MultiplelocationsLocation ofHeadNeckThoraxLumbar/injurySpineNumber1026872328547PrintDone

Name: A traffic safety company publishes reports about motorcycle fatalitie
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Description: A traffic safety company publishes reports about motorcycle fatalities and helmet use. In the first accompanying data table, the distribution shows the proportion offatalities by location of injury for motorcycle accidents. The second data table sho

Here we want to check the independence of motorcycle fatalities and use of helmet. For that…

Math

Statistics

Proportion of fatalities by location of injury for motorcycle accidents Abdomen/ Full data set Multiple locations Location of Head Neck Thorax Lumbar/ injury Spine Proportion 0.570 0.310 0.030 0.060 0.030 Location of injury and fatalities for 2062 riders not wearing a helmet Abdomen/ Location of Multiple Head Neck Thorax Lumbar/ injury locations Spine Number 1026 872 32 85 47

Proportion of fatalities by location of injury for motorcycle accidents Abdomen/ Full data set Multiple locations Location of Head Neck Thorax Lumbar/ injury Spine Proportion 0.570 0.310 0.030 0.060 0.030 Location of injury and fatalities for 2062 riders not wearing a helmet Abdomen/ Location of Multiple Head Neck Thorax Lumbar/ injury locations Spine Number 1026 872 32 85 47

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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Question

A traffic safety company publishes reports about motorcycle fatalities and helmet use. In the first accompanying data table, the distribution shows the proportion of
fatalities by location of injury for motorcycle accidents. The second data table shows the location of injury and fatalities for 2062 riders not wearing a helmet. Complete
parts (a) and (b) below.
Click the icon to view the tables.
(Round to two decimal places as needed.)
What is the P-value of the test?
P-value = (Round to three decimal places as needed.)
Based on the results, does the distribution of fatal injuries for riders not wearing a helmet follow the distribution for all other riders at a significance level of a = 0.01?
O A. Do not reject Ho. There is sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet follows the distribution for all riders.
B. Reject Ho. There is not sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet follows the distribution for all riders.
O C. Do not reject Ho. There is not sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet does not follow the distribution for all
riders.
O D. Reject Ho. There is sufficient evidence that the distribution of fatal injuries for riders not wearing a helmet does not follow the distribution for all riders.
(b) Compare the observed and expected counts for each category. What does this information tell you?
A. Motorcycle fatalities from head injuries occur less frequently for riders not wearing a helmet.
B. Motorcycle fatalities from thorax injuries occur more frequently for riders not wearing a helmet.
O C. Motorcycle fatalities from head injuries occur more frequently for riders not wearing a helmet.

Distribution of fatalities by location of injury
Proportion of fatalities by location of injury for motorcycle accidents
Abdomen/
Location of
Multiple
Full data set
Head
Neck
Thorax
Lumbar/
injury
locations
Spine
Proportion
0.570
0.310
0.030
0.060
0.030
Location of injury and fatalities for 2062 riders not wearing a helmet
Abdomen/
Multiple
locations
Location of
Head
Neck
Thorax
Lumbar/
injury
Spine
Number
1026
872
32
85
47
Print
Done

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