Question 905402
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Hi
Using Excel Scatter Plot, choosing cubic regression equation
*[illustration trend].
x	y	est	y-est	(y-est)^2
5	2	4	-2	4
3	4	4	0	0
4	7	7	0	0
6	4	4	0	0
5	6	4	2	4
				8/5=1.6
				sqrt(1.6)is the standard error of estimate