Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couples in theirmidtwenties who were married or had been dating for at least two years. They zapped the man's hand with an electrode while the woman watched, andmeasured the activity in several parts of the woman's brain that would respond to her own pain. Brain activity was recorded as a fraction of the activity observedwhen the woman herself was zapped with the electrode. The women also completed a psychological test that measures empathy.13 14 1536 11327 8 9 105 653 55 59 58 53Brain Activity -0.1010.398 0.017 0.368 0.02 0.424 0.09 0.5160.1530.737 0.252 0.568 0.217 0.712 0.359 0.776Subject134111216Empathy Score4255404843686118591.2sub ject 5 e10,020120-8,4Given that the equation for the regression line is y = 0.00635x +0.00218, what is the residual for subject 5?ANSWER:

Solution: Let X be the empathy score and Y be the brain activity. From the given information, the…

Answered: Empathy means being able to understand…

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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A researcher is interested in hamster wheel-running activity during the summer versus the winter. She suspects that either the hamsters will run less during the winter to conserve energy or they will run more to keep warm. She records the activity of n = 25 hamsters during June, July, and August and compares their running-wheel revolutions per hour to the activity of the same hamsters during December, January, and February. The data are collected, and the results show an average difference score of MD = 5. 7 and a sum of squares of SS = 2,851.44. What is the value for degrees of freedom for this repeated-measures t test?
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A researcher is interested in hamster wheel-running activity during the summer versus the winter. She suspects that either the hamsters will run less during the winter to conserve energy or they will run more to keep warm. She records the activity of n = 25 hamsters during June, July, and August and compares their running-wheel revolutions per hour to the activity of the same hamsters during December, January, and February. The data are collected, and the results show an average difference score of Mp = 5.7 and a sum of squares of SS = 2,851.44. What is the value for degrees of freedom for this repeated-measures t test?
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