Q. The manager of a college cafeteria claims that 15% students take only soft drink,35% tea only, 18% soft drink with sandwich,20% tea with sandwich and 12% neither. A sample of 120 students show that 20 takes only soft drink, 36 only tea, 14 soft drinks with sandwich, 18 tea with sandwich and remaining neither. Test the manager’s claim at 5% level of significance.
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Soft drink, any of a class of nonalcoholic beverages, usually but not necessarily carbonated, normally containing a natural or artificial sweetening agent, edible acids, natural or artificial flavours, and sometimes juice. Natural flavours are derived from fruits, nuts, berries, roots, herbs, and other plant sources. Coffee, tea, milk, cocoa, and undiluted fruit and vegetable juices are not considered soft drinks.
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