The accompanying data file shows the average price of gas (Price in $ per gallon) for the

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The accompanying data file shows the average price of gas (Price in $ per gallon) for the 50 states during January 2019.

a. Construct a boxplot for the Price variable. Does the boxplot suggest that outliers exist?

b. Use z-scores to determine if there are any outliers for the Price variable. Are your results consistent with part a? Explain why or why not.

c. Use the information from the boxplot to replace outliers with NAs. What is the mean of the average price of gas without the outliers?

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Business Analytics Communicating With Numbers

ISBN: 9781260785005

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Authors: Sanjiv Jaggia, Alison Kelly, Kevin Lertwachara, Leida Chen

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Question Posted: Feb 16, 2023 03:48 AM

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The accompanying data file shows the average price of gas (Price in $ per gallon) for the

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a The boxplot suggests that there is an outlier in the upper part of the dis...View the full answer

Business Analytics Communicating With Numbers

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