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A machine is designed to produce insulating washers for electrical devices of average thickness of 0.025 cm. A random sample of 10 washers was found to have an average thickness of 0.024 cm. with a standard deviation of 0.002 cm. Test the significance of the deviation. It is given that value of t for 9 degrees of freedom at 5% level is 2.262.
in Technology by Diamond (53,765 points) | 335 views

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