What is the probability that the sample proportion of negative ROAs is greater than 0.2 in 2012?

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What is the probability that the sample proportion of negative ROAs is greater than 0.2 in 2012?


Please use the sample means and variances of the above six financial variables in 2011 as an estimate of the population means and variances of the year 2012, and answer the following question:image text in transcribedimage text in transcribed

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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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