Mathematics, 03.10.2019 07:00 jfiicoh
Acertain region of america with over 500,000 households has a mean household income of $70,000 with a standard deviation of $20,000. economists plan to take random samples of 625 households and calculate the sample mean income for each sample.
1. calculate the sample mean
2. calculate the standard deviation of the sample.
Answers: 1
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Acertain region of america with over 500,000 households has a mean household income of $70,000 with...
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