Are serial killers more introverted than the general population? A sample of 14 serial killers serving life sentences was tested and found to have a mean introversion of 42. If the population mean is 36 with a standard deviation of 6.8, are the serial killers significantly more introverted than regular people? (Set the alpha level at .05)Would your answer be any different if this was a two-tailed test?

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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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Are serial killers more introverted than the general population? A sample of 14 serial killers serving life sentences was tested and found to have a mean introversion of 42. If the population mean is 36 with a standard deviation of 6.8, are the serial killers significantly more introverted than regular people? (Set the alpha level at .05)

Would your answer be any different if this was a two-tailed test?

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