Before the rush began for Christmas shopping, a department store had noted that ...
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Before the rush began for Christmas shopping, a department store had noted that the percentage of its customers who use the store's credit card, the percentage of those who use a major credit card, and the percentage of those who pay cash are the same. During the Christmas rush in a sample of 150 shoppers, 46 used the store's credit card; 43 used a major credit card; and 61 paid cash. With = 0.05, test to see if the methods of payment have changed during the Christmas rush. CALCULATE
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