Data on the gasoline tax per gallon (in cents) as of a certain date for the 50 U

Question

Data on the gasoline tax per gallon (in cents) as of a certain date for the 50 U.S. states and the District of Columbia are shown below. Gasoline Tax per Gallon 20.5 Gasoline Tax per Gallon 17.2 State Alabama Alaska Arizona Arkansas California Colorado Connecticut Delaware District of State Missouri Montana Nebraska Nevada New Hampshire New Jersey New Mexico New York North Carolina North Dakota 19.0 27.1 48.9 42.9 18.6 44.5 Columbia Florida Georgia 23.4 34.3 20.5 23.0 28.0 Idaho Illinois Indiana Iowa Kansas Kentucky Louisiana Maine Maryland Massachusetts Michigan Minnesota Mississippi Oklahoma Oregon Pennsylvania Rhode Island South Carolina South Dakota Tennessee Texas Utah Vermont Virginia Washington West Virginia Wisconsin Wyoming 25.0 32.2 40.3 16.6 25.0 20.0 23.4 23.4 37.4 32.7 32.5 27.7 18.6 (a) The smallest value in the data set is 8.0 (Alaska) and the largest value is 48.9 (California). Are these values outliers? O Alaska and California are both outliers O Neither Alaska nor California are outliers. O California is an outlier, but Alaska is not. O Alaska is an outlier, but California is not.

Explanation / Answer

Alaska is an outlier but California is not as the value for Alaska is significantly different then the next lowest value that is New Jersey at 14.4 whereas California is close the next highest value of Hawaii of 45.8.

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