Exercise 13

Consider stock in Papa Johns International, Inc. (symbol PZZA).

Using the R function get.hist.quote, download the adjusted prices needed to calculate three years of daily returns for the period ending December 31, 2015.

Compute five years of monthly returns corresponding to the prices obtained in Part (a).

Use the function summary to compute the summary statistics for the returns computed in Part (b).

Construct a time series plot of the returns calculated in Part (b).

Exercise 18

For the three years of daily returns on Papa Johns stock calculated in Exercise 13, construct a normal probability plot; see Example 2.23. Based on this plot, what do you conclude regarding the distribution of daily returns of Papa Johns stock?