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16-12-2022
Mathematics

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according to a recent report, the mean income before taxes of 284 households in the u.s. was $62,175.82. the population standard deviation was known to be $6,529.99. (a) find the point estimate of the population mean income. (b) calculate the margin of error. (round to three decimals.) (c) calculate the 90 percent confidence interval of the population mean income. (round each value to three decimals

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