Suppose that a random sample of 13 recently sold houses in a certain city has...
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Suppose that a random sample of 13 recently sold houses in a certain city has a mean sales price of 280 000 with a standard deviation of 14 000 Under the assumption that house prices are normally distributed find a 90 confidence interval for the mean sales price of all houses in this city Give the lower limit and upper limit of the 90 confidence interval Carry your intermediate computations to at least three decimal places Round your answers to the nearest whole number If necessary consult a list of formulas Lower limit Upper limit s X
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