Question: Test the hypothesis that a coffee-vending machine spills an average of 240 milliliters of coffee in a single operation. Ten cups of coffee are examined

Test the hypothesis that a coffee-vending machine spills an average of 240 milliliters of coffee in a single operation. Ten cups of coffee are examined and are found to contain 245, 238, 246, 242, 237, 241, 236, 238, 240, and 241 milliliters of coffee, respectively. Use a 0.05 level of significance and assume that the distribution of contents is normal.

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