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Based on sales over a six-month period, the five cars with the highest sales were the Chevy Cruze, Ford Focus, Hyundai Elantra, Honda Civic, and
Based on sales over a six-month period, the five cars with the highest sales were the Chevy Cruze, Ford Focus, Hyundai Elantra, Honda Civic, and Toyota Corolla (Motor Trend, 2 November 2011). Based on total sales, the market share for these five compact cars is the Chevy Cruze 24%, Ford Focus 21%, Hyundai Elantra 20%, Honda Civic 18%, and Toyota Co-rolla 17%. A sample of 400 car sales in Chicago shows the number of vehicles sold as follows: Car Units sold Chevy Cruze 108 Ford Focus 92 Hyundai Elantra 64 Honda Civic 84 Toyota Corolla 52 Use the goodness of fit test to show that the market share of the five cars is different from that reported by Motor Trend. Use the 5% significance level
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