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The diameter of a ball bearing is to have an averageof 2.0 Cm. A random sampling of 10 bearings is selected every hour to check...Asked by Naveen
The diameter of a ball bearing is to have an average of 2.0 Cm. A random sample of 10 bearings is selected every hour to check the diameters. The sample selected at 9 a.m. gave the following measurements: 2.02, 2.04, 2.00, 1.98, 1.98, 2.04, 2.04, 2.00, 2.02, 1.96. Calculate the t - value and draw your conclusions, if any.
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Answered by
Henry
Ave e Sum / 10.
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