Twenty-two people were asked to rate a competitive beer on a taste scale of 0 to 100.

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Twenty-two people were asked to rate a competitive beer on a taste scale of 0 to 100. Another 22 people were asked to rate our beer on the same taste scale. The file P09_63.xlsx contains the results. Do these data provide sufficient evidence to conclude, at the 1% significance level, that people believe our beer tastes better than the competitor’s? Assume ratings are at least approximately normally distributed.

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Data Analysis And Decision Making

ISBN: 415

4th Edition

Authors: Christian Albright, Wayne Winston, Christopher Zappe

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