Mathematics, 02.12.2020 01:30 erikloza12pdidtx

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 $22.8 for a random sample of 1867 people. Assume the population standard deviation is known to be $7.7. 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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