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Mathematics, 15.04.2020 19:17 sansyboy7891

An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in California.

Suppose that the mean income is found to be $21.6 for a random sample of 3839 people.

Assume the population standard deviation is known to be $12.5.

Construct the 80% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.

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