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?
