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Server date: May 18, 2008, 3:02 am
Airline.ds by time (d = 0, D = 0, Lambda = 1)
Number of observations
144
# lost observations
0
Median of Time Series
265.5
2 Sided Trimmed Mean at 5%
272.78294573643
2 Sided Trimmed Mean at 10%
269.8
2 Sided Trimmed Mean at 15%
267.90909090909
Mean of Time Series
280.29861111111
SE of Mean of Time Series
10.032087401351
T-STAT of Mean of Time Series
27.940208243536
SE of Time Series
119.96631694294
Minimum value of Time Series
104
Maximum value of Time Series
622
Observation
Original Series
Working Series
Sig.
1
112
112
2
118
118
3
132
132
4
129
129
5
121
121
6
135
135
7
148
148
8
148
148
9
136
136
10
119
119
11
104
104
12
118
118
13
115
115
14
126
126
15
141
141
16
135
135
17
125
125
18
149
149
19
170
170
20
170
170
21
158
158
22
133
133
23
114
114
24
140
140
25
145
145
26
150
150
27
178
178
28
163
163
29
172
172
30
178
178
31
199
199
32
199
199
33
184
184
34
162
162
35
146
146
36
166
166
37
171
171
38
180
180
39
193
193
40
181
181
41
183
183
42
218
218
43
230
230
44
242
242
45
209
209
46
191
191
47
172
172
48
194
194
49
196
196
50
196
196
51
236
236
52
235
235
53
229
229
54
243
243
55
264
264
56
272
272
57
237
237
58
211
211
59
180
180
60
201
201
61
204
204
62
188
188
63
235
235
64
227
227
65
234
234
66
264
264
67
302
302
68
293
293
69
259
259
70
229
229
71
203
203
72
229
229
73
242
242
74
233
233
75
267
267
76
269
269
77
270
270
78
315
315
79
364
364
80
347
347
81
312
312
82
274
274
83
237
237
84
278
278
85
284
284
86
277
277
87
317
317
88
313
313
89
318
318
90
374
374
91
413
413
92
405
405
93
355
355
94
306
306
95
271
271
96
306
306
97
315
315
98
301
301
99
356
356
100
348
348
101
355
355
102
422
422
103
465
465
104
467
467
105
404
404
106
347
347
107
305
305
108
336
336
109
340
340
110
318
318
111
362
362
112
348
348
113
363
363
114
435
435
115
491
491
116
505
505
117
404
404
118
359
359
119
310
310
120
337
337
121
360
360
122
342
342
123
406
406
124
396
396
125
420
420
126
472
472
127
548
548
128
559
559
129
463
463
130
407
407
131
362
362
132
405
405
133
417
417
134
391
391
135
419
419
136
461
461
137
472
472
138
535
535
139
622
622
140
606
606
141
508
508
142
461
461
143
390
390
144
432
432
Summary of extreme values (applies to stationary time series only)
Values > 2 S.E.
Values <-2 S.E.
Values > 3 S.E.
Values <-3 S.E.
Remarks:
This is a timeplot of the Airline data. The time series exhibits a non-seasonal and a seasonal trend. Furthermore the time series shows a typical form of heteroskedasticity where the (local) standard deviation varies in proportion to the (local) trend.
To cite Wessa.net in publications use: Wessa, P. (2008), Free Statistics Software, Office for Research Development and Education, version 1.1.22-r6, URL http://www.wessa.net/
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