Essay
You are attempting to estimate the average amount a family spends on food during a year.In the past,the standard deviation of the amount a family has spent on food during a year has been approximately $1200.If you want to be 99% sure that you have estimated average family food expenditures within $60,how many families do you need to survey?
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=1200,z - multiple ...View Answer
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Correct Answer:
Verified
=1200,z - multiple ...View Answer
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