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The Cost Of A Large French Fry

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Fries are one of the many trademark foods of McDonald’s restaurants, with millions of people flocking to their local McDonald’s every day to enjoy the delectable potato side dish. The fries are also quite cheap— only costing $1.39 for a small, or $2.29 for a large at McDonald’s in the United States (not including tax), making them a very desirable purchase. However, many may ask themselves if they are receiving an amount of fries that makes the low price actually “low,” especially when looking at the almost one dollar difference between a large and small french fry. This reasoning inspired me to investigate; I wanted to see if the higher cost of a large french fry is justifiable. My question lead me to coming up with the idea of purchasing large and small fries, counting the number of fries, then calculating the average cost per fry. I then hypothesized that large fries are actually not the greatest bargain because it costs more per fry than a small. In numeric terms, H0:L=Svs. Ha:L-S>0 where L= the true mean cost per fry for a large french fry at the Waukee location, and S= the true mean cost per fry for a small fry at the Waukee location. It is necessary to collect raw data in order to draw conclusions, so, for this population an observational study was used to obtain data. The collection process is actually quite simple, as McDonald’s french fries are all that are needed. However, around fifteen samples of large and small fries is the recommended minimum number of

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