..................
....................
.................
ΣX | ΣY | Σ(x-x̅)² | Σ(y-ȳ)² | Σ(x-x̅)(y-ȳ) | |
total sum | 300.00 | 215.00 | 480.00 | 1192.00 | 672.00 |
mean | 60.00 | 43.00 | SSxx | SSyy | SSxy |
Sample size, n = 5
here, x̅ = Σx / n= 60.000
ȳ = Σy/n = 43.000
SSxx = Σ(x-x̅)² = 480.0000
SSxy= Σ(x-x̅)(y-ȳ) = 672.0
estimated slope , ß1 = SSxy/SSxx = 672/480=
1.4000
intercept,ß0 = y̅-ß1* x̄ = 43- (1.4 )*60=
-41.0000
Regression line is, Ŷ= -41.000 +
( 1.400 )*x
..............
Predicted Y at X= 62
is
Ŷ= -41.00000 +
1.40000 *62= 45.8
................
Please let me know in case of any doubt.
Thanks in advance!
Please upvote!
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