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In: Statistics and Probability

From 90 of its restaurants, Noodles & Company managers collected data on per-person sales and the...

From 90 of its restaurants, Noodles & Company managers collected data on per-person sales and the percent of sales due to "potstickers" (a popular food item). Both numerical variables failed tests for normality, so they tried a chi-square test. Each variable was converted into ordinal categories (low, medium, high) using cutoff points that produced roughly equal group sizes. At α = .05, is per-person spending independent of percent of sales from potstickers?

Per spending: Low Med High Row Total

Low 9 10    8 27

Med 7    13    9    29

High 9 8 17    34

Col Total    25    31 34 90

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orchestra answered 2 years ago
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