Question
1. The following data have been observed on the dependent variable Y and on an explanatory...
1. The following data have been observed on the dependent variable Y and on an explanatory variable X:
yi 22 38 16 39 55
xi 10 35 20 30 20
(a) Calculate the ordinary least squares (OLS) estimates of the
intercept and slope parameters.
(b) Calculate the sample variance of both variables (S²x and S²y)
and the sample correlation between X
and Y . Explain what the calculated value of the correlation
means.
Homework Answers
Answer #1
A)
B)
The values are positively correlated but correlation is not strong.
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