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The average credit card debt for a recent year was $9195. Five years earlier the average credit card debt was $6618. Assume sample sizes of 32 were used and the population standard deviations of both samples were $1927. Find the 90% confidence interval of the difference in means. Use ₁ for the most recent average debt. Round the answers to two decimal places.

The average credit card debt for a recent year was $9195. Five years earlier the average credit card debt was $6618. Assume sample sizes of 32 were used and the population standard deviations of both samples were $1927. Find the 90% confidence interval of the difference in means. Use ₁ for the most recent average debt. Round the answers to two decimal places.

MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
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The average credit card debt for a recent year was $9195. Five years earlier the average credit card debt was $6618. Assume sample sizes of 32 were used and the population standard deviations of both samples were $1927. Find the 90% confidence interval of the difference in means. Use μ₁ for the most recent average debt. Round the answers to two decimal places. GA $ < M–My < $ X 5
Transcribed Image Text:The average credit card debt for a recent year was $9195. Five years earlier the average credit card debt was $6618. Assume sample sizes of 32 were used and the population standard deviations of both samples were $1927. Find the 90% confidence interval of the difference in means. Use μ₁ for the most recent average debt. Round the answers to two decimal places. GA $ < M–My < $ X 5
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