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A researcher was interested in examining a relationship between hours of exercise and concentration level among BYC students. Also, he was interested in examining whether hours of exercise would predict the concentration level. Answer following questions based on the given data.
Exercise
(X)
Concentration level (Y)
0
4
2
1
8
10
6
9
4
6
x̅=4
Y=6
SSx =
40
SSy=54
Q1: What is the regression line? Y hat = __________
Q2: Compute SS residual.
Q3: Find the standard error of the estimate.
1)
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