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A brand of powdered milk is advertised as having a net weight of 250 grams. A curious consumer obtained the net weight of 10 randomly
A brand of powdered milk is advertised as having a net weight of 250 grams. A curious consumer obtained the net weight of 10 randomly selected cans. The values obtained are: 256, 248, 242, 245, 246, 248, 250, 255, 243 and 249 grams. Is there reason to believe that the average net weight of the powdered milk cans is less than 250 grams at 99% confidence
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