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QUESTION
The mean federal income tax paid last year by a random sample of 33 persons selected from a city was $4301. Suppose the standard deviation of tax...
The mean federal income tax paid last year by a random sample of 33 persons selected from a city was $4301. Suppose the standard deviation of tax paid in this city is σ = $797. The 95% confidence interval for the population mean (rounded to two decimal places) is:
The lower limit is $
The upper limit is $
