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 ?
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 ?
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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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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