Thanks for the swift response but I am confused by your bar graph! Shouldn't there be only 4 means on the bar graph and not 10 like you have due to their only being 4 categories? ( Water, Soda N/a Beer, and beer) respectively?
Oh! Yes, that is another way to do it. The question didn't specify if it wanted the bar graph to be done by means based on the 10 data sets or the total categories for each data set.
Because ANOVA is calculated by the data sets themselves, I defaulted to the bar graph I gave you. It's equally valid to only use the 4 means. My apologies for not responding to you fast enough! I just got into work.
May 18th, 2015
Let me make that up to you: I'll happily help you for free with another question.