The following data refers to the price of a good ‘P’ and the quantity of the good supplied,
‘S’.
P 2 7 5 1 4 8 2 8
S 15 41 32 9 28 43 17 40
a. Estimate the linear regression line (S) P
b. Estimate the standard errors of ˆ and ˆ
c. Test the hypothesis that price influences supply
d. Obtain a 95% confidence interval for
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