(1 point) Empathy means being able to understand what others feel. To see how th

Question

(1 point) Empathy means being able to understand what others feel. To see how the brain expresses empathy, researchers recruited 16 couples in their mid-twenties 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, 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 23 4 5 6789 10 11 12 13 14 15 16 Empathy Score 42 48 41 62 57 57 58 55 44 53 60 67 12 66 32 100 Brain Activity -0-129 0.397 0.0110.368 0.034 0.416 0.111 0.515 0.152 0.746 026 0.573 0.2110.7120.367 0.784 1.2 supject.13 Given that the equation for the regression line is 0.00801x-0.08244, what is the residual for subject 13?

Explanation / Answer

Ans:

Given that

Regression eqn:

y'=0.00801x-0.08244

For subject 13,

Observed y=0.211

Now find perdicted y for subject 13:

x=12

y'=0.00801x-0.08244

y'=0.00801*12-0.08244

y'=0.01368

Residual=Observed-perdicted=0.211-0.01368=0.19732

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