Question: . Product name Specification model Unit Example v6 Restaurant Chain (Estimation) A restaurant chain has 60 restaurants in Illinois, 50 in Indiana, and 45 in

. Product name Specification model Unit Example

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Product name Specification model Unit Example v6 Restaurant Chain (Estimation) A restaurant chain has 60 restaurants in Illinois, 50 in Indiana, and 45 in Ohio. Management is considering adding a new item to the menu. To test the likely demand for this item, it was introduced on the menus of random samples of 12 restaurants in Illinois, 10 in Indiana, and 9 in Ohio. Using the subscripts 1, 2, and 3 to denote Illinois, Indiana, and Ohio, respectively, the sample means and standard deviations for numbers of orders received for this item per restaurant in the three states in a week were as follows: = 21.2 S1 = 12.8 12 = 13.3 S2 = 11.4 26.1 9.2

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