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Multiple choice questions based on regression.
A regression and correlation analysis resulted in the following information regarding a
1. A regression and correlation analysis resulted in the following information regarding a dependent variable (y) and an independent variable (x).
∑X = 90 ∑(Y - )(X - ) = 466
∑Y = 170 ∑(X - )2 = 234
n = 10 ∑(Y - )2 = 1434
SSE = 505.98
The coefficient of determination equals
1. 0.6472 2. -0.6472 3. 0 4. 1
2. The following information regarding a dependent variable Y and an independent variable X is provided.
∑X = 16 ∑(Y - )(X - ) = -8
∑Y = 28 ∑(X - )2 = 8
n = 4 SST = 42
SSE = 34
The coefficient of determination is
1. 0.1905 2. -0.1905 3. 0.4364 4. -0.4364
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