Veteran's Day

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2008 Confidence Interval Detail
057/Dallas
057-905/Dallas ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 8,969,271,770 1.0108 8,873,438,633 69 99,827 .006454301
A 9,551,520,680 0.9922 9,626,608,224 95 47,102 .005007303
A 9,959,003,180 0.9898 10,061,631,825 95 22,882 .004148897
A 11,575,229,330 0.9626 12,024,962,944 99 8,711 .022151809
B 1,768,920,640 1.0879 1,625,995,625 14 5,822 .021926672
B 1,684,228,580 1.0336 1,629,478,115 14 387 .002028825
B 1,994,270,220 0.9885 2,017,471,138 12 156 .005956217
B 1,952,384,130 0.9700 2,012,767,144 6 56 .004071938
C 491,591,630 0.8546 575,230,084 16 12,343 .083250420
C 544,793,920 0.8686 627,209,210 19 1,681 .075189271
C 707,166,500 0.8790 804,512,514 9 640 .025142036
C 953,166,790 1.0619 897,605,038 8 178 .013163548
F1 6,124,968,540 0.8188 7,480,420,787 16 6,389 .018894371
F1 6,235,623,680 0.8478 7,355,064,496 13 1,138 .007374235
F1 6,236,686,290 0.8593 7,257,868,370 12 274 .007303242
F1 6,157,411,970 0.8897 6,920,773,261 12 60 .015627779
L1 2,330,254,430 1.1605 2,007,974,520 7 9,456 .022762275
L1 2,297,968,740 1.0264 2,238,862,763 7 1,301 .002213269
L1 2,320,477,520 1.0275 2,258,372,282 7 369 .003347295
L1 2,559,774,810 0.9737 2,628,915,282 6 98 .004262988
Random Totals: 84,414,713,350   88,925,162,255 536 218,870  
Catg D1 Exception Values: 3,385,510   3,956,764      
Total Test Values (4): 84,418,098,860   88,929,119,019      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 4,446,455,951

Confidence Interval Values (5)

Local Test Value: 84,418,098,860 (Outside Confidence Interval)
State Lower Limit: 84,482,663,068 (State Test Value minus Margin of Error Percent)
State Upper Limit: 93,375,574,970 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 82,284,285,393 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories

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