An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. Suppose that the mean income is found to be $31.7 for a random sample of 753 people. Assume the population standard deviation is known to be $9. Construct the 80% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.
An economist wants to estimate the mean per capita income (in thousands of dollars) for a major city in Texas. Suppose that the mean income is found to be $31.7 for a random sample of 753 people. Assume the population standard deviation is known to be $9. Construct the 80% confidence interval for the mean per capita income in thousands of dollars. Round your answers to one decimal place.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.5: Comparing Sets Of Data
Problem 1GP
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