Exercise: Anscombe's Quartet

bahmotherElectronique - Appareils

7 oct. 2013 (il y a 4 années et 4 jours)

89 vue(s)

Exercise:
Anscombe’s

Quartet

Same

Regression

Analysis

for
each

data set


The regression equation is

y = 3.00 + 0.500 x


Predictor
Coef


SE
Coef


T

P

Constant 3.000

1.125

2.67

0.026

x

0.500


0.118

4.24

0.002


S = 1.237 R
-
Sq = 66.7% R
-
Sq(adj) = 62.9%

Same Summaries for each

n

11

11

mean

9.00

7.50

SD

3.16

1.94

r

0.82


Homework

Plot each data set

Hand sketch the best line
±

2s.

Comment.

http://en.wikipedia.org/

wiki/Anscombe%27s_quartet