(a) Does the distribution of fatal injuries for riders not wearing a helmet follow the distribution for all riders? Use a = 0.05 level of significance. What are the null and alternative hypotheses? Ho: The distribution of fatal injuries for riders not wearing a helmet the same distribution for all other riders. H,: The distribution of fatal injuries for riders not wearing a helmet the same distribution for all other riders.

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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 2068 riders not wearing a helmet. Complete
parts (a) and (b) below.
Click the icon to view the tables.
Click the icon to view the chi-square table of critical values.
dintuibution
(a)
Distribution of fatalities by location of injury
Ho
all
oth
H,
Proportion of fatalities by location of injury for motorcycle accidents
all
oth
Abdomen/
Location of
Multiple
locations
Head
Neck
Thorax
Lumbar/
injury
Spine
Proportion
0.570
0.310
0.030
0.060
0.030
Location of injury and fatalities for 2068 riders not wearing a helmet
Abdomen/
Location of
Multiple
Head
Neck
Thorax
Lumbar/
injury
locations
Spine
Number
1044
855
34
90
45
Print
Done
Transcribed Image Text: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 2068 riders not wearing a helmet. Complete parts (a) and (b) below. Click the icon to view the tables. Click the icon to view the chi-square table of critical values. dintuibution (a) Distribution of fatalities by location of injury Ho all oth H, Proportion of fatalities by location of injury for motorcycle accidents all oth Abdomen/ Location of Multiple locations Head Neck Thorax Lumbar/ injury Spine Proportion 0.570 0.310 0.030 0.060 0.030 Location of injury and fatalities for 2068 riders not wearing a helmet Abdomen/ Location of Multiple Head Neck Thorax Lumbar/ injury locations Spine Number 1044 855 34 90 45 Print Done
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 2068 riders not wearing a helmet. Complete
parts (a) and (b) below.
Click the icon to view the tables.
Click the icon to view the chi-square table of critical values.
...
(a) Does the distribution of fatal injuries for riders not wearing a helmet follow the distribution for all riders? Use
a = 0.05 level of significance. What are the null and alternative hypotheses?
Ho: The distribution of fatal injuries for riders not wearing a helmet
the same distribution for all
other riders.
H,: The distribution of fatal injuries for riders not wearing a helmet
the same distribution for all
other riders.
Transcribed Image Text: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 2068 riders not wearing a helmet. Complete parts (a) and (b) below. Click the icon to view the tables. Click the icon to view the chi-square table of critical values. ... (a) Does the distribution of fatal injuries for riders not wearing a helmet follow the distribution for all riders? Use a = 0.05 level of significance. What are the null and alternative hypotheses? Ho: The distribution of fatal injuries for riders not wearing a helmet the same distribution for all other riders. H,: The distribution of fatal injuries for riders not wearing a helmet the same distribution for all other riders.
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