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Apr 13, 2017 at 12:44 history edited CommunityBot
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Jun 18, 2016 at 1:53 history edited Glen_b CC BY-SA 3.0
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Oct 9, 2013 at 21:35 history edited Glen_b CC BY-SA 3.0
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Oct 9, 2013 at 17:18 vote accept Sympa
Aug 16, 2013 at 21:48 history edited Glen_b CC BY-SA 3.0
answered followup questions
Aug 16, 2013 at 21:39 history edited Glen_b CC BY-SA 3.0
answered followup questions
Aug 16, 2013 at 16:41 comment added Sympa Glen b, thanks for a very informative answer. I am not sure if I understand your comments under 2). Why would variance bows in? I interpret that as large errors near the Mean with smaller errors away from the Mean. The bit of material I have read on the subject, suggests just the opposite... the bows out thing hourglass shape. Additionally, how would you define heteroskedasticity? And, what do you mean by the variance of unobserved errors? How can you measure those since they are unobserved?
Aug 16, 2013 at 3:30 history edited Glen_b CC BY-SA 3.0
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Aug 16, 2013 at 1:49 history edited Glen_b CC BY-SA 3.0
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Aug 16, 2013 at 1:38 history answered Glen_b CC BY-SA 3.0