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2011 Confidence Interval Detail
063/Dickens
063-903/Spur ISD

Category Summary

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

Stratum
Variance
A 3,816,860 1.0229 3,731,411 17 302 .024830541
A 3,766,890 0.9608 3,920,577 16 153 .048206452
A 3,828,240 1.0032 3,816,029 10 93 .008714981
A 3,860,730 0.9521 4,054,963 10 57 .028194809
D3 14,459,060 0.9969 14,504,022 16 2,380 .026291912
G1 37,108,660 1.0533 35,230,855 8 39 .016891103
G1 38,786,690 1.0272 37,759,628 6 16 .006516168
G1 33,811,210 0.9829 34,399,440 4 6 .002331861
G1 35,313,890 0.9887 35,717,498 2 3 .010784933
Random Totals: 174,752,230   173,134,423 89 3,049  
Catg D1 Exception Values: 22,072,670   21,147,523      
Total Test Values (4): 196,824,900   194,281,946      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,714,097

Confidence Interval Values (5)

State Lower Limit: 184,567,849 (State Test Value minus Margin of Error Percent)
Local Test Value: 196,824,900 (Within Confidence Interval)
State Upper Limit: 203,996,043 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 220,085,680 (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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