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In a study, researchers compared the variability in product of a particular piece of equipment to a known analytic capability to decide whether product consistency could be improved. The following data were obtained for 10 batches of product. Preliminary test results suggest the data are normally distributed and that s 0.589 28.5 Construct a 95% confidence interval for the process variation of the piece of equipment under consideration. 30.5 28.9 29.9 29.4 28.8 29.6 29.4 29.2 The 95% confidence interval is from 1 to Round to three decimal places as needed.) 29.8

math   Statistics-And-Probability   
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Answer #1

From the given dnto 2 25429.4, S0 S-0.sa9 Somple mean ()2xi givon ニ29.4-+ 2.262x - 29.4 + 0.42) -) 28.979, 29.821

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