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Mathematics, 26.03.2020 18:49 marlea

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 $21.1$ 21.1 for a random sample of 18581858 people. Assume the population standard deviation is known to be $10.4$ 10.4. Construct the 80%80% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.

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