Several types of yogurt are sold in a small general
Several types of yogurt are sold in a small general store in New England. From a past study of customer selections, the owner knows that 20% of the customers ordered flavor A, 35%, flavor B, 18%, flavor C, 12%, flavor D, and the remainder, flavor E. Now the owner, who thinks that the customer preferences have changed, randomly samples 80 customers and finds that 12 prefer A, 16 prefer B, 30 prefer C, 7 prefer E, and the remainder prefer D. Determine if the customers' preferences have changed from the last study.
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