1). Which is cheaper: eating in or dining out? The mean cost of a flank steak, broccoli, and rice bought at the grocery store is $13.04. A sample of 100 neighborhood restaurants showed an average price of $12.75 with a standard deviation of $2 for a comparable restaurant meal. At 95% confidence, is there evidence to show that the average cost of a restaurant meal is less than fixing a comparable meal at home? What is your conclusion? Explain your conclusions.
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