Can anyone help with explaining a linear model and how I figure out if appropiate? Using Minitab, I have comeleted the graph model just need help at interpeting it.
This is the information supplied and the questions. I'm not understanding this chapter and wondering if someone can help me
Do you think a linear model is appropriate?
Interpret the slope of your model
Is your model likely to make reliable estimates?
What is the residual for a person who weighs 190 pounds and is 21% bodyfat?
Regression Analysis: Body Fat % versusWeight (lb)
The regression equation is
Body Fat % = - 27.38 + 0.2499 Weight (lb)
S = 7.04913 R-Sq = 48.5% R-Sq(adj) = 45.7%
Analysis of Variance
Source DF SS MS F P
Regression 1 843.33 843.325 16.97 0.001
Data
Waist (in) Weight (lb) Body Fat %
32 175 6
36 181 21
38 200 15
33 159 6
39 196 22
40 192 31
41 205 32
35 173 21
38 187 25
38 188 30
33 188 10
40 240 20
36 175 22
32 168 9
44 246 38
33 160 10
41 215 27
34 159 12
34 146 10
44 219 28
This is the information supplied and the questions. I'm not understanding this chapter and wondering if someone can help me
Do you think a linear model is appropriate?
Interpret the slope of your model
Is your model likely to make reliable estimates?
What is the residual for a person who weighs 190 pounds and is 21% bodyfat?
Regression Analysis: Body Fat % versusWeight (lb)
The regression equation is
Body Fat % = - 27.38 + 0.2499 Weight (lb)
S = 7.04913 R-Sq = 48.5% R-Sq(adj) = 45.7%
Analysis of Variance
Source DF SS MS F P
Regression 1 843.33 843.325 16.97 0.001
Data
Waist (in) Weight (lb) Body Fat %
32 175 6
36 181 21
38 200 15
33 159 6
39 196 22
40 192 31
41 205 32
35 173 21
38 187 25
38 188 30
33 188 10
40 240 20
36 175 22
32 168 9
44 246 38
33 160 10
41 215 27
34 159 12
34 146 10
44 219 28
Last edited: