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A soccer ball manufacturer claims the diameters of their ball have a standard deviation of 2 mm when properly inflated.Based on a random sample of

A soccer ball manufacturer claims the diameters of their ball have a standard deviation of 2 mm when properly inflated.Based on a random sample of 10 balls you find a standard deviation of 3.2 mm.Does the sample suggest the standard deviation is higher than that claimed by the manufacturer?

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