Refer to the situation of problem 8-72. The study also compared average portfolios of microloans. For the
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Refer to the situation of problem 8-72. The study also compared average portfolios of microloans. For the Alpha group it was $50 million, and for the Beta group it was $14 million. Assume the Alpha group had a standard deviation of $20 million and the Beta group had a standard deviation of $8 million. Construct a 95% confidence interval for the difference in mean portfolio size for firms in the two groups of credit ratings.
PortfolioA portfolio is a grouping of financial assets such as stocks, bonds, commodities, currencies and cash equivalents, as well as their fund counterparts, including mutual, exchange-traded and closed funds. A portfolio can also consist of non-publicly...
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Related Book For 
Complete Business Statistics
ISBN: 9780077239695
7th Edition
Authors: Amir Aczel, Jayavel Sounderpandian
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