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Mathematics, 12.03.2021 15:10 sarahisme1123

A national manufacturer of ball bearings is experimenting with two different processes for producing precision ball bearings. It is important that the diameters be as close as possible to an industry standard. The output from each process is sampled and the average error from the industry standard is calculated. The results are presented below. Sample SizeSample MeanSample Standard DeviationProcess A120.0020mm0.00010mmProcess B140.0026mm0.00012mmThe researcher is interested in determining whether there is evidence that the two processes yield different average errors at the 5% significance level. Assume that the population standard deviations are equal. What is the absolute value of computed t test statistic

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