8 poin The following times, in minutes, to automatic completion, win, of ten computer games of Freecell solitaire are 149 172 158 417 298 358 472 907 125 886 Find, a) The mean time required for automatic completion for this sample. b) The standard deviation of this sample data. c.) If we were to construct a confidence interval for the true population mean time of completion assuming a 100% win rate, which distribution would we use? d.) a 95% confidence interval for the true mean time of completion assuming a 100% win rate