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Lants Use the following sample to estimate a population mean u. 34.9 30.3 51.2 41.8 40.5 24.8 34.4 57.6 39.9 Assuming the population is normally

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Lants Use the following sample to estimate a population mean u. 34.9 30.3 51.2 41.8 40.5 24.8 34.4 57.6 39.9 Assuming the population is normally distributed, find the 80% confidence interval about the population mean. Enter your answer as an open-interval (i.e., parentheses) accurate to two decimal places. 80% C.I. =

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