Steven Smth 40-R2428-17EW2 nework: 8-2 MyStatLab: Module Eight Problem Set Sat 1
ID: 3327002 • Letter: S
Question
Steven Smth 40-R2428-17EW2 nework: 8-2 MyStatLab: Module Eight Problem Set Sat 10(10 complete) HW Score: 8 0.78 of 7 pts 2.1.15-T cycle accidents. The second data table shows the location of injury and fatalities for 2053 riders not wearing a helmet Complete parts (a) and (b) below e safety company pubishes reports about motoreycle fatalibes and helmet use in the frst accompanying data table, the distribution shows the proportion of fatalbes by loca Click the icon to view the tabies adatematie hypo oes to dsttution of fatal mresfor nders not wearing a helmet follow he distbusonfor at nders, Use .005 level ofsgfacevnure he n The dstribution of fatal injuries for riders not wearing a helmet follows the same distrbution for all other riders H, The distribution of fatal injuries for riders not wearing a helmet does not follow the same distribution for all other riders The dstributon of fatal nyresfor riders not wearing a helmet does not blow the sane distribution for a·oher riders H, The distribution of tatal injuries for riders not wearing a helmet does tollow the same distribution for all other riders C. None of these Multiple Locations Distribution of fatailties by location of injury Neck Full data set Round to two decimal places as needed) Location of ijryocaions Location of irury and fatates for 2053 niders not wearing a helmet Location of injuryMutple Thorax Abdomen PrintDone Enter your ansver in the edt feids and then click Check Answer emaning Clear All P enoVO 8 2 3 4. 5 6 7 8 Q W E R T Y UExplanation / Answer
Answer:
Based on the given information:
Motorcycle fatalities and helmet use
data regarding proportion of fatalities by location of injury for motorcycle accidents is already given. This can be used to determine the Expected Count.
Total number of riders = 2053
A is the correct option
Null Hypothesis H0: The distribution of fatal injuries for riders not wearing a helmet follows the same distribution for all other riders
Alternative Hypothesis H1: The distribution of fatal injuries for riders not wearing a helmet doesnot follow the same distribution for all other riders
Expected count for each location = Proportion x 2053
Degree of freedom =Number of categories - 1 = 5 - 1 = 4
Probability value corresponding to Chi square value 118.972 with 4 degree of freedom is <0.00001
Location of Injury Observed Count (O) Expected Count (E) (O-E) (O-E)^2/E Multiple Locations 1032 =0.57*2053'= 1170.21 -138 16.324 Head 855 =0.31*2053 = 636.43 219 75.064 Neck 35 =0.03*2053 = 61.59 -27 11.480 Thorax 83 =0.06*2053 = 123.18 -40 13.106 Abdomen/Lumbar/Spine 48 =0.03*2053 = 61.59 -14 2.999 Total 2053 2053 Sum (Chi Square) 118.972Related Questions
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