AndersonB_Sec2_HW1

AndersonB_Sec2_HW1 - Beverly Anderson Professor Sullivan...

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Professor Sullivan Biological Statistics I Tues/Thurs 10:10 Homework 1 1. > Motorcycle.Fatalities = c(17,38,27,14,18,34,16,42,28,24,40,20,23,31,37,21,30,25) >stem(Motorcycle.Fatalities) The decimal point is 1 digit(s) to the right of the | 1 | 4678 2 | 0134578 3 | 01478 4 | 02 > summary(Motorcycle.Fatalities) Min. 1st Qu. Median Mean 3rd Qu. Max. 14.00 20.25 26.00 26.94 33.25 42.00 This data does support the common belief that a greater proportion of younger drivers incur such fatalities. You could say that those who are younger are generally more susceptible to motorcycle crashes. But, we need to know if the data was a random sample and accurately represents the whole population of motorcycle drivers. It would also be helpful to know the mean age of a motorcycle driver. If the mean age of a motorcycle driver were similar to the mean or median age of a motorcycle drive that dies in a crash, then it would be misleading to say that younger motorcycle drivers are more susceptible to crashes. 2.
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This document was uploaded on 10/18/2010.

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AndersonB_Sec2_HW1 - Beverly Anderson Professor Sullivan...

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