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Unread 10-03-2016, 14:59
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AKA: Grady B. Meyer
FRC #0293 (S.P.I.K.E (Students Participating In Killer Engineering))
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Re: Poll-what countries use Delphi?

Quote:
Originally Posted by Ryan_Todd View Post
I beg to differ!

I don't care to dredge up enough memories of my statistics courses to run the confidence interval on a data sample of this size (that is left as an exercise for the reader), but if anything I'd say that these stats seem to show that CD is skewed towards international teams.
You're not wrong here, and you raise a good point. I do wish I had a larger sample size. But that turned out not to be the case, and responses had pretty much stopped coming in by the time yesterday came around, so I had to run with these results. Also, when I said that EricH's prediction had been "correct," I meant that the general point of his prediction- that results would be skewed towards the US- was correct. I should have specified this in the original post.

And I still think that point pans out. While the US did under perform, as you noted, it still took a much larger chunk of the pie than anyone else did. 79.8% of the responses were from the United States. Even if that is much less than 95%, the number EricH predicted, it still blows out the second biggest chunks of repondants- Canada and Israel, both with 5%.

If the US's 79.8% was much less than expected, I think this can be attributed to the relatively small sample size. If I had more responses, I think the results would be much closer to 95%.
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