SOLUTION: Quartic Regression? Can you define this?
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Question 125260This question is from textbook
: Quartic Regression? Can you define this?
This question is from textbook
Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!
is a process by which the equation of a parabola of "" is found for a .
Example:
for a set of data
|
1 |-8
-5 | 0
2 | 5
The quadratic regression is:
where:
and
The error is:
for a set of data
|
1 |-8
-5 | 0
2 | 5
0 | 0
The quadratic regression is
where:
and
The error is:
Quadratic Regression on the TI-83
1. Press the Y= key and clear any equations.
2. Press the STAT key, use the arrow keys to select EDIT, and enter this data:
|
1 |230
2 |310
3 |350
4 |360
5 |350
6 |300
7 |220
3. Press the STAT key, select CALC, and choose option number 5: QuadReg. This will bring you back to the home screen, with QuadReg showing. Type "L1, L2" by pressing 2nd and 1, then comma, then 2nd and 2. Type "Y1" by pressing VARS, move across to Y-VARS, choosing Function, and choosing option number 1. Your home screen should show:
QuadReg , ,
Now press ENTER. You will see something like results in examples above
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