Question

In: Statistics and Probability

The table below gives data from a study that shows that social exclusion causes "real pain."...

The table below gives data from a study that shows that social exclusion causes "real pain." That is, activity in the area of the brain that responds to physical pain goes up as distress from social exclusion goes up. The scatterplot for this data shows a moderately strong linear relationship. The data are given below.

     Social      Brain      Social      Brain
Subject      distress      activity Subject      distress      activity
1 1.24 −0.055 8 2.20 0.025
2 1.89 −0.040 9 2.58 0.027
3 1.06 −0.026 10 2.77 0.033
4 2.56 −0.014 11 2.77 0.064
5 2.13 −0.014 12 3.31 0.077
6 2.65 0.014 13 3.61 0.124
7 2.01 0.021

(a) What is the equation of the least-squares regression line for predicting brain activity from social distress score? (Round your answers to four decimal places.)

brain activity=______ social distress + __________

I have the answers, 0.0598 and -.01235. However I have no idea how they got here. I am allowed a calculator to answer this type of question( I have TI-83)

Solutions

Expert Solution

The above scatter plot shows strong relationship between Social distress & brain activity.

orchestra answered 1 year ago
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