A trader at the Simpa Hall Market sells books. He sells the books at different fixed price (𝑥) in each of the weeks within the semester. He noted the number of books sold (𝑦 ) at each of the fixed price within the semester. The data is shown in the table below.
Price per book 20 10 25 30 35 40 25 40 45 20 35 40 Number of books sold 60 70 55 50 45 40 54 40 35 65 48 46
Estimate the linear regression of 𝑦 on 𝑥 and test for the presence or otherwise of autocorrelation at 5%.
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