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  3. 4 the following data set presents cpi consumer price index...

Question: 4 the following data set presents cpi consumer price index...

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4. The following data set presents CPI (Consumer Price Index) of the US and the price of a regular cheese pizza at the same time. CPI 30.2 48.3 12.3 162.2 191.9 197.8 Cost of Pizza 0.15 0.35 1.00 1.25 1.75 2.00 (a) (10 points) Assuming a linear relation between CPI (a) and pizza price ), find the least square estimation for the regression coefficients. (b) (10 points) Use the data to test the hypothesis that the pizza price does not depend on the CPL Use the 5 percent level of significance.
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