Question: Since 2000, the Toyota Camry, Honda Accord, and Ford Taurus have been the three best selling passenger cars in the United States. Sales data for 2003 indicate market shares among the top three: Toyota Camry 37%, Honda Accord 34%, and Ford Taurus29%. Assume a sample of 1200 sales of passenger cars during the first quarter of 2004 shows the following.

Can these data used to conclude that the market shares among the top three passenger cars have changed during the first quarter of 2004? What is the p-value? Use a .05 level of significance. What is your conclusion?