Based on your ANOVA, should you use a multiple comparison method (i.e. LSD) here? Explain

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

Based on your ANOVA, should you use a multiple comparison method (i.e. LSD) here? Explain.

Analysis of variance Table
Response: observations
Df
Sum sq Mean sq
supermarket 2 0.0034 0. 0017
F value Pr (>F)
1. 3635 0.2877
Item
7 29.4326 4.2047 3414.1228 <2e-16 * s* s*
Residuals
0. 0172
0. 0012
14
signif. codes: 0 ***** 0.001 '**' 0.01 **' 0.05 .' 0.1
call:
Im (formula = observations - supermarket
Item, data
q4)
Residuals:
Min
1Q
Median
30
мах
|-0.060000 -0.018125 -0. 000625 0.020521
0.058750
Coefficients:
Estimate std. Error t value Pr (>|t|)
< 2e-16 ** se
0. 532
0. 336
< 2e-16 ** e
< 2e-16 ***
31.293 2. 33e-14 ** *
< 2e-16 * **
< 2e-16 ***
< 2e-16 *s* e
< 2e-16 ese e
0. 02265 126.052
(Intercept)
SupermarketB 0.01125
Supermarketc -0. 01750
2.85542
0. 01755
0. 641
0. 01755
-0.997
Item2
-2.32667
0.02865 -81.200
Item3
-1.76667
0.02865 -61.656
0. 89667
0. 02865
Item4
Item5
-2.09000
0.02865 -72.940
Item6
-1.26667
0.02865 -44.206
Item7
-2.06667
0. 02865 -72.126
Item8
-2.21333
0.02865 -77.244
---
signif. codes: 0 ***** 0.001 ***' 0.01 **' 0.05 . 0.1
Residual standard error: 0.03509 on 14 degrees of freedom
Multiple R-squared: 0.9994,
F-statistic:
Adjusted R-squared:
0.999
2656 on 9 and 14 DF,
p-value: < 2.2e-16
Transcribed Image Text:Analysis of variance Table Response: observations Df Sum sq Mean sq supermarket 2 0.0034 0. 0017 F value Pr (>F) 1. 3635 0.2877 Item 7 29.4326 4.2047 3414.1228 <2e-16 * s* s* Residuals 0. 0172 0. 0012 14 signif. codes: 0 ***** 0.001 '**' 0.01 **' 0.05 .' 0.1 call: Im (formula = observations - supermarket Item, data q4) Residuals: Min 1Q Median 30 мах |-0.060000 -0.018125 -0. 000625 0.020521 0.058750 Coefficients: Estimate std. Error t value Pr (>|t|) < 2e-16 ** se 0. 532 0. 336 < 2e-16 ** e < 2e-16 *** 31.293 2. 33e-14 ** * < 2e-16 * ** < 2e-16 *** < 2e-16 *s* e < 2e-16 ese e 0. 02265 126.052 (Intercept) SupermarketB 0.01125 Supermarketc -0. 01750 2.85542 0. 01755 0. 641 0. 01755 -0.997 Item2 -2.32667 0.02865 -81.200 Item3 -1.76667 0.02865 -61.656 0. 89667 0. 02865 Item4 Item5 -2.09000 0.02865 -72.940 Item6 -1.26667 0.02865 -44.206 Item7 -2.06667 0. 02865 -72.126 Item8 -2.21333 0.02865 -77.244 --- signif. codes: 0 ***** 0.001 ***' 0.01 **' 0.05 . 0.1 Residual standard error: 0.03509 on 14 degrees of freedom Multiple R-squared: 0.9994, F-statistic: Adjusted R-squared: 0.999 2656 on 9 and 14 DF, p-value: < 2.2e-16
Supermarket
A
В
Item
1
2.84
2.90
2.82
2
0.51
0.56
0.51
3
1.08
1.10
1.08
4
3.75
3.80
3.70
5
0.77
0.75
0.77
6.
1.59
1.54
1.63
7
0.82
0.77
0.77
8.
0.65
0.68
0.59
Transcribed Image Text:Supermarket A В Item 1 2.84 2.90 2.82 2 0.51 0.56 0.51 3 1.08 1.10 1.08 4 3.75 3.80 3.70 5 0.77 0.75 0.77 6. 1.59 1.54 1.63 7 0.82 0.77 0.77 8. 0.65 0.68 0.59
Expert Solution
steps

Step by step

Solved in 2 steps with 1 images

Blurred answer
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning
Statistics for The Behavioral Sciences (MindTap C…
Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning
Elementary Statistics: Picturing the World (7th E…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman
Introduction to the Practice of Statistics
Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman