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Use the given information to find the minimum sample size required to estimate an unknown population mean µ. How many adults must be randomly selected to estimate the mean FICO (credit rating) score of working adults in a country? WE want 95% confidence that the sample mean is within 3 points of the population mean, and the population standard deviation is 69.


The minimum sample size required is …. adults (Round up to the nearest whole numbers)

Please show work…..