To characterize random uncertainty of a pressure measuring technique, twelve pressure measurements were made of a...

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To characterize random uncertainty of a pressure measuringtechnique, twelve pressure measurements were made of a certainconstant pressure source, giving the following results in kPa: 125,128, 129, 122, 126, 125, 125, 130, 126, 127, 124, and 123. (a)Estimate the 95% confidence interval of the next measurementobtained with this technique; (b) Estimate the 95% confidenceinterval of the average of next 5 measurements obtained with thistechnique; (c) Using only the 12 measurements available, how wouldyou report the value of measured pressure, including the 95%confidence interval?

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3.9 Ratings (597 Votes)

Let X denotes measured pressurea Since sample size is small and population variance isunknown We use tdistribution to find confidence interval95 confidence interval for next See Answer

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