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1) A sociologist would like to estimate the total amount of federal, state and city taxes paid by a family of four with income level

1) A sociologist would like to estimate the total amount of federal, state and city taxes paid by a family of four with income level $50,000 per year. A random sample of 100 families produced sample mean of x = $ 4,258 with sample standard deviation s = $1,098. Find a 95% confidence interval for the population mean

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