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A population standard deviation is estimated to be 9. We would like to estimate the population
mean within 0.7, with a 95-percent level of confidence. What sample size is needed?
(Round answer up to the next whole number)

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A population standard deviation is estimated to be 9. We would like .pdf

  • 1. A population standard deviation is estimated to be 9. We would like to estimate the population mean within 0.7, with a 95-percent level of confidence. What sample size is needed? (Round answer up to the next whole number)