Researcher is using data for a sample of 10 observations to estimate the
relation between consumption expenditure and income. Preliminary analysis
of the sample data produces the following data. (20%)
Y=B+B,X +6,, i=l.
Y=20
2X =100
-r-nFY = 850
x'-x -nXX = 1000
y-XY - nY = 700
- 10,= 2
Hint: the t-value (critical value) of 59% (0.05) =2.306 or -2.603
A, compute OLS estimates of A, and B, and interpret it.
B, calculate the variance and standard deviation of p and B,.
C, Compute the value ofR (coefficient of determination) and interpret the
result.
D, Compute 95% confidence interval for the B, and .
E, Test the significance of the ,.and B, parameter at 5% level of confidence
using t-test
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