please explain thoroughly the Test of Homogeneity of Variances and Why Post Hoc Tukey HSD is the appropriate model. thanks
please explain thoroughly the Test of Homogeneity of Variances and Why Post Hoc Tukey HSD is the appropriate model. thanks
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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please explain thoroughly the Test of Homogeneity of Variances and Why Post Hoc Tukey HSD is the appropriate model. thanks
Transcribed Image Text:Oneway
X18 - Delivery Speed
Less than 1 year
1 to 5 years
Over 5 years
Total
Test of Homogeneity of Variances
X18 - Delivery Speed
Levene Statistic
X18 - Delivery Speed
Between Groups
Within Groups
Total
Post Hoc
N Mean Std. Deviation Std. Error
323.172|
.6150 .1087
35 4.243
.5731
.0969
33 4.200
.4500 .0783
100 3.886
.7344
.0734|
.866
df1df2 Sig.
2 97 424
Games-
Howell
Dependent Variable:X18 - Delivery Speed
Sum of Squares df Mean Square F Sig.
24.030 2
12.015 39.681.000
.303
29.370 97
53.400 99
(1) X1 Customer
Type
Tukey HSD Less than 1 year
ANOVA
1 to 5 years
(J) X1 - Customer
Type
1 to 5 years
Over 5 years
Less than 1 year
Over 5 years
Less than 1 year
1 to 5 years
1 to 5 years
Over 5 years
Less than 1 year
Over 5 years
Less than 1 year
1 to 5 years
*. The mean difference is significant at the 0.05 level.
Homogeneous
Over 5 years
Less than 1 year
1 to 5 years
Descriptives
Over 5 years
95% Confidence Interval for Mean
Lower Bound
X18 - Delivery Speed
Multiple Comparisons
Subset for alpha = 0.05
1
2
3.172
2.950
4.046
4.040
3.740
Mean Difference
(I-J)
X1 - Customer Type N
Tukey HSDa Less than 1 year 32
Over 5 years
33
1 to 5 years
35
Sig.
1.000
Means for groups in homogeneous subsets are displayed.
a. Uses Harmonic Mean Sample Size = 33.287.
4.200
4.243
.946
Upper Bound Minimum Maximum
3.394
4.440
4.360
4.032
Std.
Error Sig.
.1346.000
.1365.000
-1.0710*
-1.0281*
1.0710
.0429
1346.000
1335.945
1.0281* .1365.000
-.0429 1335.945
-1.0710* .1456.000
-1.0281* 1340.000
1.0710* .1456.000
.0429 .1246.937
1.0281* .1340.000
-.0429 .1246.937
1.6
3.0
3.3
1.6
95% Confidence
Interval
Lower
Bound
-1.391
-1.353
.751
-.275
.703
-.361
-1.420
-1.351
4.4
5.5
4.9
5.5
.722
-.256
.706
-.342
Upper
Bound
-.751
-.703
1.391
.361
1.353
.275
-.722
-.706
1.420
.342
1.351
.256
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