What sample size is needed to have 90 confidence of estimating the population mean amount spent in her restaurant to within $2 00, assuming that the standard deviation is estimated to be $8 d How many customers need to be selected to have 95 confidence of estimating the population proportion of cus...

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What sample size is needed to have 90% confidence of estimating the population mean amount spent in

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What sample size is needed to have 90% confidence of estimating the population mean amount spent in her restaurant to within $2.00, assuming that the standard deviation is estimated to be $8?

d. How many customers need to be selected to have 95% confidence of estimating the population proportion of customer who purchase dessert to within 0.04?

e. Based on your answers to (c) and (d), how large of a sample should Jeanine take?

Posted Date: May 18, 2024 10:07 PM

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