Sample Size Calculation Using Standard Deviation and Margin of Error

Nonfiction, Social & Cultural Studies, Social Science, Statistics
Cover of the book Sample Size Calculation Using Standard Deviation and Margin of Error by Homework Help Classof1, Classof1
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Author: Homework Help Classof1 ISBN: 1230000139854
Publisher: Classof1 Publication: June 6, 2013
Imprint: Language: English
Author: Homework Help Classof1
ISBN: 1230000139854
Publisher: Classof1
Publication: June 6, 2013
Imprint:
Language: English

An auditor wants to estimate the mean annual expenditure (across departments) on a particular item.  They seek accuracy within a range of +/-$100.  The population standard deviation is estimated to be $250.  How many departments would they need to survey to achieve this level of accuracy with 95% confidence?

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An auditor wants to estimate the mean annual expenditure (across departments) on a particular item.  They seek accuracy within a range of +/-$100.  The population standard deviation is estimated to be $250.  How many departments would they need to survey to achieve this level of accuracy with 95% confidence?

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