3) A market research analyst wanted to determine if the proportion of mayonnaise 1 purchasers who were loyal to their favorite brand (PM) is different than the proportion of bath soap purchases who were loyal to their favorite brand (ps). Specifically, the analyst wants to test the hypothesis Ho: PM = Ps versus Ha: PM #Ps. A survey of 100 mayonnaise purchasers showed that 65 were loyal to their favorite brand and a survey of 100 bath soap (S) purchasers showed that 53 were loyal to their favorite brand (Brand Proportion worksheet). What is the test statistic for the hypothesis test? A) 0.12 B) 0.59 C) 1.73 D) 2.30 E) 2.44

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