Question

The accompanying table shows a portion of the average price for a gallon of gas for the 50 states during April 2012. The entire data set, labeled Gas_Prices_2012, can be found on the text website.
State .... Price per Gallon
Alabama .... $4.36
Alaska .... 3.79
: :
Wyoming ... 3.63

a. Construct a box-plot for the gasoline price and use it to identify outliers, if any.
b. Confirm your analysis by using z-scores to determine if there are any outliers in the gasoline price.



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  • CreatedJanuary 28, 2015
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