Dear Colleagues
APOLOGIES FOR CROSS-POSTING
I am trying to compare 2 roadside interview sites (different years, same site) to determine if travel patterns have changed statistically significantly between 2001 and 2011, to determine whether we can avoid interviewing some (lower volume) sites and use the 2011 observations instead. Are there statistical tests that you can think of that are appropriate for this task? This would also help if, for example, we want to re-use the 2001 data in the merging process (and what are your views on that?).
Kind regards
Tom
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