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2006 Confidence Interval Detail
113/Houston
113-901/Crockett ISD

Category Summary

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

Stratum
Variance
A 29,663,288 0.9723 30,508,370 13 977 .023373451
A 29,599,042 0.9102 32,519,273 15 605 .015397733
A 29,644,677 0.9751 30,401,679 15 384 .006061255
A 29,525,939 0.9786 30,171,611 17 190 .015989150
D3 58,260,150 0.8825 66,017,167 23 3,594 .032069168
F1 12,892,840 0.8337 15,464,604 8 175 .025387105
F1 13,084,832 0.8323 15,721,293 8 48 .034053001
F1 13,273,204 0.8537 15,547,855 7 14 .096888721
L1 7,815,980 1.1930 6,551,534 8 175 .119290576
L1 7,901,642 0.8934 8,844,462 6 43 .377676372
L1 7,697,009 1.0688 7,201,543 6 16 .023847212
L1 7,582,148 0.9838 7,707,001 3 4 .003032753
Random Totals: 246,940,751   266,656,392 129 6,225  
Catg J Exception Values: 12,096,902   12,083,235      
Catg D1 Exception Values: 14,826,280   15,294,758      
Catg F1 Exception Values: 11,813,160   11,847,155      
Total Test Values (4): 285,677,093   305,881,540      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 15,294,077

Confidence Interval Values (5)

Local Test Value: 285,677,093 (Outside Confidence Interval)
State Lower Limit: 290,587,463 (State Test Value minus Margin of Error Percent)
State Upper Limit: 321,175,617 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 280,165,559 (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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