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Homework Help Classof1
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Classof1
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?
Scrivi una recensione per "Sample Size Calculation Using Standard Deviation and Margin of Error"
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