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We'll talk about those in a bit.
I am preparing my own report, incorporating some of your work (and especially your references -- good job hunting down interesting information!).
I want each group to submit one more thing: all the markings missing from Dave's stick for a 10 foot log, obtained using a stated equation (by Friday).
But first, some comments. No one got it right. That's okay! But let's learn from our mistakes.
#1: avoid the use of first person singular in a group report. A) I've got no idea which "I" it refers to; B) it makes me wonder about the functioning of the group!
Let's take a look at the derived equation and "regression diagnostics" (more about regression diagnostics later).
I really loved the format of your report. Everyone check that out. Let's start developing sections along these lines.
Also nice graphic, page 1.
This group did a nice quadratic regression, but didn't indicate which length it pertained to. I think that they did 14 foot logs, based on the coefficient for the quadratic term ($x^2$). Why do I think that?
Name GroupLabel Adheke A2 Adkins E2 Browe B2 Demler D3 Field C1 Flerlage A3 Ford C2 Kaelin C3 Mercer E1 Monroe E3 Moore D2 O'Shaughnessy B3 Quinn D1 Slavey A1 Van Laningham B1Cycle: #1s stay fixed. #2s, shift one letter "up" (or wrap); #3s, shift two letters "up"
So C1, B2, and A3 is a new group, as is A1, E2, and D3 is a new group. And so on....
These are the new groups for your next group project (on our assignment page), which will be due next Friday.
Let's get into those groups, and then all run some quadratic regressions on the stick data.
We do need to be careful however, for the eights data. It's offset from the others....