(Solved): The accompanying data file shows monthly stock prices (in \$) for Corporation A and Corporation B o ...

The accompanying data file shows monthly stock prices (in \$) for Corporation A and Corporation B over the past five years. Click here for the Excel Data File a-1. Calculate the mean and the standard deviation for Corporation \( A \). Note: Round final answers to 2 decimal places. a-2. Calculate the mean and the standard deviation for Corporation B, Note: Round final answers to 2 decimal places. b. Which corporation had the higher average stock price over the time period? Which corporation's stock price had greater dispersion as measured by the standard deviation? \begin{tabular}{|l|l|l|l|l|l|l|} \hline J7 & & & & & & \end{tabular}