Notation Listed below are combined cityhighway fuel

Chapter 9, Problem 2

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Notation Listed below are combined cityhighway fuel consumption ratings (in mi/gal)for five different cars measured under both the old rating system and a new rating systemintroduced in 2008 (based on data from USA Today). The new ratings were implementedin response to complaints that the old ratings were too high. Find the values of d and sd. Ingeneral, what does md represent?Old Rating (mi/gal) 16 18 27 17 33New Rating (mi/gal) 15 16 24 15 29

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