Question: Problem 8.56 Refer to the weekly 2002 return data for PTTRX listed in Table 1.20. Use a statistical software package to: (a) Draw the graph

Problem 8.56 Refer to the weekly 2002 return data for PTTRX listed in Table 1.20. Use a statistical software package to:

(a) Draw the graph of the Q–Q plot (normal probability plot) of the returns.

(b) Test for normality by computing the Shapiro–Wilk test statistic. State the alternatives, decision rule, and conclusion.

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