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1. A sample of 55 adults attending a country fair determined that the mean age was 47 . Given that the population standard deviation is

1. A sample of 55 adults attending a country fair determined that the mean age was 47 . Given that the population standard deviation is known to be 32, determine the 90 confidence interval for the population mean age. ( final answer to 3 decimal places)

Confidence interval for the population mean is ----- and ----

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