Suppose that a random sample of 15 recently sold houses in a certain city has a mean sales price of $295,000, with a standard deviation of $15,000. 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: $ X
Suppose that a random sample of 15 recently sold houses in a certain city has a mean sales price of $295,000, with a standard deviation of $15,000. 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: $ X
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 1GP
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