Consider the daily log returns of Hewlett-Packard stock, value-weighted index, equal-weighted index, and S\&P 500 index from January 1980 to December 1999 for 5056 observations. The returns include all distributions and are in percentages. The data can be obtained from CRSP or from the file "d-hwp3dx8099.dat," which has four columns with the same ordering as stated before. For each return series, test the hypothesis \(H_{o}: ho_{1}=\cdots=ho_{10}=0\) versus the alternative hypothesis \(H_{a}: ho_{i} eq 0\) for some \(i \in\{1, \ldots, 10\}\), where \(ho_{i}\) is the lag- \(i\) autocor-

relation. Draw your conclusion based on the \(5 \%\) significance level. Compare the results between returns of individual stocks and market indexes.