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Costs. To help travelers know what to expect,researchers
Chapter 5, Problem 6(choose chapter or problem)
Costs. To help travelers know what to expect,researchers collected the prices of commodities in16 cities throughout the world. Here are boxplotscomparing the prices of a ride on public transporta-tion, a newspaper, and a cup of coffee in the 16 cities(prices are all in $US). 3.02.52.01.51.00.50.0PublicTransportationNewspaper Coffeea) On average, which commodity is the most expensive?b) Is a newspaper always more expensive than a ride onpublic transportation? Explain.c) Does the presence of outliers affect your conclusionsin a) or b)?
Questions & Answers
QUESTION:
Costs. To help travelers know what to expect,researchers collected the prices of commodities in16 cities throughout the world. Here are boxplotscomparing the prices of a ride on public transporta-tion, a newspaper, and a cup of coffee in the 16 cities(prices are all in $US). 3.02.52.01.51.00.50.0PublicTransportationNewspaper Coffeea) On average, which commodity is the most expensive?b) Is a newspaper always more expensive than a ride onpublic transportation? Explain.c) Does the presence of outliers affect your conclusionsin a) or b)?
ANSWER:a) Coffee is the most expensive on average.
b) No, a newspaper is not always more expensive than a ride on public transportation. The median for a ride on public transp