Construct a 90% confidence interval to estimate the population mean using the following data: x = 25

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Construct a 90% confidence interval to estimate the population mean using the following data:

x = 25 σ = 5.2 n = 21

What assumptions need to be made about this population?
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Business Statistics

ISBN: 9780321925121

2nd Edition

Authors: Robert A. Donnelly

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