Class Mean Standard Deviation N Lower 12.11 2.83 122 Working 13.01 2.91 541 Middle 14.99 2.93 475 Upper 15.44 2.83 34 What is the 99% confidence interval for the mean number of years of education for middle-class respondents? 18.65 to 19.33 4.65 to 5.33 7.33 to 7.67 14.65 to 15.33

Class Mean Standard Deviation N Lower 12.11 2.83 122 Working 13.01 2.91 541 Middle 14.99 2.93 475 Upper 15.44 2.83 34 What is the 99% confidence interval for the mean number of years of education for middle-class respondents? 18.65 to 19.33 4.65 to 5.33 7.33 to 7.67 14.65 to 15.33

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Question

Class	Mean	Standard Deviation	N
Lower	12.11	2.83	122
Working	13.01	2.91	541
Middle	14.99	2.93	475
Upper	15.44	2.83	34

What is the 99% confidence interval for the mean number of years of education for middle-class respondents?

18.65 to 19.33
4.65 to 5.33
7.33 to 7.67
14.65 to 15.33

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