A market research firm gathered a random sample of 150 customers. The firm randomly assigned 50 of
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A market research firm gathered a random sample of 150 customers. The firm randomly assigned 50 of these to rate the current product and assigned 50 each to rate new versions of the product. The firm then formed a contingency table of Version (old, new A, new B) versus Rating (like, dislike, ambivalent). Are these data suitable for using the chi-squared test of independence?
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Related Book For 
Statistics For Business Decision Making And Analysis
ISBN: 9780134497167
3rd Edition
Authors: Robert A. Stine, Dean Foster
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