2) A car manufacturer introduces a new model and claims that the color preferences of buyers match the historical distribution. To test this, a sample of 300 recent buyers is taken, and the distribution of color preferences (Red, Blue, Green, Other) is recorded as follows. Conduct a chi-squared goodness of fit test to determine if the observed color preferences significantly differ from the historical distribution. Color Observed Red 75 Blue 120 Green 60 Other 45

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A: We have to find