The accompanying table shows a portion of the average price for a gallon of gas for the
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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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Related Book For
Essentials Of Business Statistics Communicating With Numbers
ISBN: 9780078020544
1st Edition
Authors: Sanjiv Jaggia, Alison Kelly
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