AP Statistics Quiz
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INFERENCE FOR CATEGORICAL DATA: PROPORTIONS
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A restaurant owner compares the proportion of customers who rate their experience as "excellent" after two different menu designs are implemented on different weeks. From independent random samples of customers, a 95% confidence interval for the difference in excellent-rating proportions (Week 1 menu minus Week 2 menu) is (−0.15,−0.02). Which interpretation is correct?
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