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2008 Confidence Interval Detail
190/Rains
190-903/Rains ISD

Category Summary

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

Stratum
Variance
A 55,198,718 0.9251 59,667,839 21 1,259 .088457167
A 57,903,412 0.9720 59,571,412 22 691 .029835186
A 53,020,808 0.9317 56,907,597 19 390 .018409132
A 60,426,895 0.8433 71,655,277 18 237 .121719753
D3 144,331,938 0.8544 168,927,830 59 5,336 .293577551
F1 7,905,108 0.9303 8,497,375 7 116 .011419354
F1 8,827,061 0.7185 12,285,402 9 52 .094111301
F1 8,743,468 0.8709 10,039,577 7 23 .038723590
F1 6,574,796 0.8475 7,757,871 6 6 .029902221
G1 41,853,080 1.0763 38,886,073 5 13 .005213036
Random Totals: 444,785,284   494,196,253 173 8,123  
Catg D1 Exception Values: 11,973,617   8,512,541      
Catg G1 Exception Values: 16,859,793   14,683,844      
Total Test Values (4): 473,618,694   517,392,638      

Margin of Error

Margin of Error Percent: 5.3260161
Margin of Error Value: 27,556,415

Confidence Interval Values (5)

Local Test Value: 473,618,694 (Outside Confidence Interval)
State Lower Limit: 489,836,223 (State Test Value minus Margin of Error Percent)
State Upper Limit: 544,949,053 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 467,099,070 (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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