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A tax assessor assesses the mean property tax bill for all property...

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A tax assessor assesses the mean property tax bill for all property...

A tax assessor assesses the mean property tax bill for all property owners in a certain city. A recent survey obtained a sample mean of 1400 dollars. The population standard deviation is known to be 1000 dollars.


1) How many tax records should be obtained at a 90% confidence level to have a margin error of 100 dollars?


Round up to the nearest whole number.


2) If the population standard deviation goes up to 1500 would the margin of error be equal, greater than, or less than 100?


Type as: equal, greater than, or less than

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Answered by ColonelThunderCrab8 on coursehero.com
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