Question: The table below shows a Consumer Panel's Preferences for Four Brands of Rhine Wine.Test the null hypothesis that the consumer preferences for the four brands

The table below shows a Consumer Panel's Preferences for Four Brands of Rhine Wine.Test the null hypothesis that the consumer preferences for the four brands of wine is equal, using the 1 percent level of significance.

Brand A Brand B Brand C Brand D Total

30 20 40 10 100

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