Answered: In a study of birth order and…

Name: In a study of birth order and intelligence, IQ tests were given to 18
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Description: In a study of birth order and intelligence, IQ tests were given to 18 and 19 year old men to estimate the size of the difference, if any, between the mean IQs of first born sons and of second born sons. The following data for 10 first born sons and

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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In a study of birth order and intelligence, IQ tests were given to 18 and 19 year old men to estimate the size of the difference, if any, between the mean IQs of first born sons and of second born sons. The following data for 10 first born sons and 10 second born sons are consistent with the means and standard deviations reported in the article. It is reasonable to assume that the samples come from populations that are approximately normal. First born: 108, 97, 109, 121, 82, 115, 127, 94, 92, 105. Second born: 91, 99, 98, 99, 102, 91, 108, 118, 101, 114. Construct A 95% confidence interval for the difference in mean IQ between firstborn and second part and sons. Let m1 denote the mean IQ of the firstborn sons. use the ti84 calculator and round the answers to one decimal place. An 95% confidence interval for the difference in mean IQ between firstborn and secondborn sons is ?

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