|
Medium-high formality Stem-and-Leaf Plot
|
| Page | 41/55 | | Date | 28.05.2018 | | Size | 8.56 Mb. | | #50548 |
| Medium-high formality Stem-and-Leaf Plot
Frequency Stem & Leaf
7.00 0 . 7788899
10.00 1 . 0111123334
12.00 1 . 556666666788
1.00 2 . 0
Stem width: 10.0
Each leaf: 1 case(s)
High formality
High formality
Stem-and-Leaf Plot
Frequency Stem & Leaf
.00 0 .
6.00 0 . 666777
6.00 0 . 888999
3.00 1 . 011
4.00 1 . 2233
8.00 1 . 44455555
2.00 1 . 67
1.00 1 . 8
Stem width: 10.0
Each leaf: 1 case(s)
Appendix I. Testing the normality assumption – Number of quality changes made across levels of formality
-
|
|
Statistic
|
Std. Error
|
Low formality (on paper)
|
Mean
|
15.733
|
1.0045
|
|
95% Confidence Interval for Mean
|
Lower Bound
|
13.679
|
|
|
|
Upper Bound
|
17.788
|
|
|
5% Trimmed Mean
|
15.824
|
|
|
Median
|
16.500
|
|
|
Variance
|
30.271
|
|
|
Std. Deviation
|
5.5019
|
|
|
Minimum
|
4.0
|
|
|
Maximum
|
25.0
|
|
|
Range
|
21.0
|
|
|
Interquartile Range
|
9.4
|
|
|
Skewness
|
-.156
|
.427
|
|
Kurtosis
|
-.716
|
.833
|
Low formality (on Tablet PC)
|
Mean
|
13.050
|
.7324
|
|
95% Confidence Interval for Mean
|
Lower Bound
|
11.552
|
|
|
|
Upper Bound
|
14.548
|
|
|
5% Trimmed Mean
|
12.963
|
|
|
Median
|
13.500
|
|
|
Variance
|
16.092
|
|
|
Std. Deviation
|
4.0115
|
|
|
Minimum
|
6.0
|
|
|
Maximum
|
22.0
|
|
|
Range
|
16.0
|
|
|
Interquartile Range
|
4.3
|
|
|
Skewness
|
.176
|
.427
|
|
Kurtosis
|
-.200
|
.833
|
Medium-low formality
|
Mean
|
12.900
|
.6958
|
|
95% Confidence Interval for Mean
|
Lower Bound
|
11.477
|
|
|
|
Upper Bound
|
14.323
|
|
|
5% Trimmed Mean
|
12.741
|
|
|
Median
|
13.000
|
|
|
Variance
|
14.524
|
|
|
Std. Deviation
|
3.8111
|
|
|
Minimum
|
7.0
|
|
|
Maximum
|
23.0
|
|
|
Range
|
16.0
|
|
|
Interquartile Range
|
5.5
|
|
|
Skewness
|
.544
|
.427
|
|
Kurtosis
|
.223
|
.833
|
Medium-high formality
|
Mean
|
10.800
|
.7162
|
|
95% Confidence Interval for Mean
|
Lower Bound
|
9.335
|
|
|
|
Upper Bound
|
12.265
|
|
|
5% Trimmed Mean
|
10.722
|
|
|
Median
|
10.750
|
|
|
Variance
|
15.390
|
|
|
Std. Deviation
|
3.9230
|
|
|
Minimum
|
4.0
|
|
|
Maximum
|
19.0
|
|
|
Range
|
15.0
|
|
|
Interquartile Range
|
7.3
|
|
|
Skewness
|
.153
|
.427
|
|
Kurtosis
|
-.721
|
.833
|
High formality
|
Mean
|
9.017
|
.6462
|
|
95% Confidence Interval for Mean
|
Lower Bound
|
7.695
|
|
|
|
Upper Bound
|
10.338
|
|
|
5% Trimmed Mean
|
9.019
|
|
|
Median
|
9.250
|
|
|
Variance
|
12.526
|
|
|
Std. Deviation
|
3.5391
|
|
|
Minimum
|
3.5
|
|
|
Maximum
|
14.5
|
|
|
Range
|
11.0
|
|
|
Interquartile Range
|
6.0
|
|
|
Skewness
|
-.042
|
.427
|
|
Kurtosis
|
-1.290
|
.833
|
Share with your friends: |
|
|
