Mean household income must be estimated for a town that can be divided into three districts. The

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Mean household income must be estimated for a town that can be divided into three districts. The relevant information is shown in the table.

If a 95% confidence interval for the population mean extending $500 on each side of the sample estimate is required, determine how many sample observations in total are needed under proportional allocation and optimal allocation.

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Statistics For Business And Economics

ISBN: 9780132745659

8th Edition

Authors: Paul Newbold, William Carlson, Betty Thorne

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Question Posted: Jul 08, 2015 12:28 AM

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Mean household income must be estimated for a town that can be divided into three districts. The

Question:

Population Estimated Standard Deviation ($) 4,000 6,000 8,000 District Size 1,150 2,120 930 3

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Proportional allocat...View the full answer

Statistics For Business And Economics

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