What is the mean number of ships plundered by brigs? ____8.75____ What is the mean number of ships plundered by frigates? ____19.25___ What is the mean number of ships plundered by man o' wars? _____19.00___ We know that the means are different between these groups, but we need to determine if these differences are significant. Is the ANOVA F- test significant? _F=48.014 , .001 Yes.___ If so, look at your Tukey HSD output. Which pirate ships significantly differed from each other in terms of the mean number ships plundered? Report the p-value for each significant difference