Question

Previous Problem List Next Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couples in their midtwenties who were married or had been dating for at least two vears. They zapped the man's hand with an electrode whle the woman watched, and measured 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 observed when the woman herself was zapped with the electrode. The women also completed a psychological test that measures empathy. Subject 1 2 3 4 5 6 7 8 10 11 12 13 14 15 16 Empathy Score 35 54 39 55 60 66 67 50 46 50 66 63 16 66 105 -0.110.381 0.014 0.376 0.033 0.404 0.107 0.516 0.149 0.736 0.249 0.564 0.212 0.724 0.37 0.764 33 Brain Activity 1.2 sub ject 11 10,0 F28 128 -a,4 = 0.0068x-0.02684, what is the residual for subject 11? (Keep at least 3 digits Given that the equation for the regression line is y after the decimal point.) ANSWER:

Answer 1

We have given,

y = 0.0068.1 -0.02684

For subject 11 we have (66,0.249)

Substitute x=66 in above regression equation

=> y = 0.0068(66) - 0.02684

=0.42196

Residual = y -

=0.249 - 0.42196

=-0.173

Residual for subject 11 is -0.173