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Which test? Researchers collected data on the numbers of motor vehicle accidents from 50 small towns in Wyoming on Memorial Day weekend and on Labor

Which test? Researchers collected data on the numbers of motor vehicle accidents from 50 small towns in Wyoming on Memorial Day weekend and on Labor Day weekend to see if there was a mean difference in motor vehicle accidents on these two holiday weekends. On the Memorial Day the average number of motor vehicle accidents was 12.5 and on Labor Day the average was 17 accidents. The standard deviation of the difference is 2.4 accidents

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