Use Excel to calculate for the following dataset: X Y 1 10 1 12 3 13...
Use Excel to calculate for the following dataset:
| X | Y |
| 1 | 10 |
| 1 | 12 |
| 3 | 13 |
| 3 | 17 |
| 5 | 17 |
| 5 | 21 |
the correlation coefficient: Please round to two decimals
the value of the intercept, b0:
the value of the slope, b1:
the predicted value of Y when X =5:
Homework Answers
Correlation coefficient: 0.8835
Intercept,b0: 9
Slope, b1: 2
Least square linear regression is given by,
ŷ = b0+b1x
ŷ = 9+2x
We have to predict y for x = 5
ŷ = 9+2*5
ŷ = 19
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Use Excel to calculate for the following dataset:
X
Y
1
10
1
12
3
13...
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Given are five observations for two variables, x and
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xi
3
12
6
20
14
yi
50
45
55
15
15
(d) Develop the estimated regression equation by computing the
values of b0 and b1 using b1 =
Σ(xi − x)(yi − y)
Σ(xi − x)2
and b0 = y − b1x.
ŷ =
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