Perfect Wear operates a chain of 10 retail department stores. Each department store makes its own...

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Perfect Wear operates a chain of 10 retail department stores. Each department store makes its own purchasing decisions. (Click the icon to view additional information.) Baker decides to use simple regression analysis to examine whether one or more of three variables (the last three columns in the table) are cost drivers of purchasing department costs. Perfect Wear operates a chain of 10 retail department stores. Each department store makes its own purchasing decisions. (Click the icon to view additional information.) Baker decides to use simple regression analysis to examine whether one or more of three variables (the last three columns in the table) are cost drivers of purchasing department costs.