Estimation of population mean and standard deviation

Reference no: EM1320325

A production process is checked periodically by a quality control inspector. The inspector selects simple random samples of 30 finished products and computes the sample mean product weights X If test results over's a long period of time show that 5% of the X values are over 2.1 pounds and 5% are under 1.9 pounds, what are the mean and the standard deviations for the population of produced with this process?

Reference no: EM1320325

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