.ClassMeanStandard DeviationNLower12.112.83122Working13.012.91541Middle14.992.93475Upper15.442.8334What is the 99% confidence interval for the mean number of years of education for lower-class respondents? 11.44 to 12.78 5.72 to 6.39 13.55 to 14.89 22.88 to 25.56

Given : Sample Size, N = n = 122

Answered: 99% confidence interval for the mean…

99% confidence interval for the mean number of years of education for lower-class respondents? 11.44 to 12.78 5.72 to 6.39 13.55 to 14.89 22.88 to 25.56

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 lower-class respondents?

11.44 to 12.78
5.72 to 6.39
13.55 to 14.89
22.88 to 25.56

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