A survey based on a stratified sample produced the following information: (a) Find a 90 % confidence

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A survey based on a stratified sample produced the following information:image text in transcribed

(a) Find a 90 % confidence interval for the population mean.

(b) Find a 95 % confidence interval for the population proportion.

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Statistics For Business And Financial Economics

ISBN: 9781461458975

3rd Edition

Authors: Cheng Few Lee , John C Lee , Alice C Lee

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