I want to compare the frequency of retweets between 2 groups of unequal size. I've got the total tweet count and the retweet count for each user. I was hoping the R Cookbook webpage would help but the tests presented there seem to be more suited for repeated measures and equal sample sizes for the two groups: http://www.cookbook-r.com/Statistical_analysis/Frequency_tests/ I will be grateful for advice on what test to use here. My dataset looks a bit like this:
userid tweetCount ReTweetcount Group
1 45 3 A
2 100 25 A
3 23 0 B