Mathematics, 12.11.2020 19:10 kimbely7704
emily and nicole own a bakery that delivers cupcakes. both bakeries charge a cost per cupcake, plus a delivery fee. emilys bakery charges 27.50 for 9 cupcakes and $42.50 for 15 cupcakes, which includes the delivery fee. the costs for cupcakes at nicoles bakery, inckuding th delivery fee, are shown in the table below
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Mathematics, 21.06.2019 21:10, benallyadam2067
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Mathematics, 21.06.2019 23:00, sugar1014
According to a study conducted in 2015, 18% of shoppers said that they prefer to buy generic instead of name-brand products. suppose that in a recent sample of 1500 shoppers, 315 stated that they prefer to buy generic instead of name-brand products. at a 5% significance level, can you conclude that the proportion of all shoppers who currently prefer to buy generic instead of name-brand products is higher than .18? use both the p-value and the critical-value approaches.
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