the United States? When a simple random sample of 400 families is taken in Washington, the mean income is $46,211 with a standard deviation of $12, 214. Another sample of 900 families throughout the United States finds the mean income to be $44,344 with a standard deviation of $10,103. Is the mean income in Washington, D.C. higher than the mean income in the rest of the country? Use a 5% significance level.
the United States? When a simple random sample of 400 families is taken in Washington, the mean income is $46,211 with a standard deviation of $12, 214. Another sample of 900 families throughout the United States finds the mean income to be $44,344 with a standard deviation of $10,103. Is the mean income in Washington, D.C. higher than the mean income in the rest of the country? Use a 5% significance level.
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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