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Mathematics, 25.05.2021 18:20 dnprops1544

A manufacturer claims that a new design for a hands-free bluetooth device has increased the range to 50 feet, allowing many customers to walk away from their phones throughout their homes and yards. An independent testing laboratory found that a random sample of 44 of these devices worked over an average distance of 46 feet, with a standard deviation of 6 feet. Is there evidence that the manufacturers claim is false

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