The following data are the median ZIP-code incomes of the daughters of the random sample of 25 mothers in the preceding exercise. Calculate a 95 percent confidence interval for the population mean. Does your confidence interval include the actual value of the population mean, μ = 40,064?

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40,018 32,496 25,860 55,123 36,769 26,505 50,543 61,800 30,375 33,656 25,593 20,275 35,846 46,012 39,225 46,175 23,538 23,841 46,892 39,747 38,010 56,416 64,947 40,057 20,034