Economic Statistics – Homework
Assume the following simple regression model
Y
i
=
β
1
+
2
X
i
+ e
i
1.
Give the data in the following table
a.
Estimate b
1
and b
2
and interpret the result
b.
Calculate and interpret the R
2
c.
Test the null hypothesis that the slope of this line is equal to zero against the
alternative that the slope is larger than zero,
d.
Calculate and interpret the standard error of regression.
2. Company A has experienced that their sales is closely related to the rate of growth of
GDP.
For years 19982002 the figures for company's sale and growth rate of GDP are as
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 Spring '08
 Martin
 Statistics, Regression Analysis, simple regression model

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