I think what you could do (scientists please feel free to correct me) is you basically separate days into two groups, 1/ days falling during mercury retro 2/ da

I think what you could do (scientists please feel free to correct me) is you basically separate days into two groups, 1/ days falling during mercury retro 2/ days falling during not-mercury retro (I think called direct motion). Then you look at the total LSEs/total days for each of the two groups and do a two-sample t-test...? Depending on the p-value you can conclude there is some correlation. Now for the fun part.. data acquisition. Anyone know a good source for tabulating LSEs/day?