STA 2023 EC С12 1. The National Highway Traffic Safety Administration publishes reports about motorcycle fatalities and helmet use. The distribution shows the proportion of fatalities by location of injury for motorcycle accidents. The following data show the location of injury and number of fatalities for 2068 riders not wearing a helmet. Does the distribution of fatal injuries for riders not wearing a helmet follow the distribution for all riders. Let a=0.05 Location of Multiple Head Neck Thorax Abdomen/Lumbar/Spine Locations Injury Proportion 0.57 0.31 0.03 0.06 0.03 Number 1036 864 38 83 47

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Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.