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rant to be 99% condent of estimating the population mean to within a sampling error of :t 30 and the standard deviation is assumed to

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rant to be 99% condent of estimating the population mean to within a sampling error of :t 30 and the standard deviation is assumed to be 120, what 'equired? ick the icon to 1view a table of values for the standardized normal distribution. "nple size required is '1 up to the nearest integer.)

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