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2006 Confidence Interval Detail
110/Hockley
110-905/Ropes ISD

Category Summary

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

Stratum
Variance
A 2,671,238 0.7334 3,642,266 16 104 .127159569
A 2,687,842 0.8668 3,100,879 16 44 .047026554
A 2,620,194 0.9347 2,803,246 13 29 .052186695
A 2,640,388 0.9913 2,663,561 12 20 .005637593
D3 14,100,457 0.8448 16,690,882 23 1,073 .105237777
G1 1,674,750 0.9104 1,839,576 17 18 .103531782
Random Totals: 26,394,869   30,740,410 97 1,288  
Catg J Exception Values: 1,487,290   1,437,125      
Catg D1 Exception Values: 17,089,451   15,381,252      
Catg G1 Exception Values: 1,487,630   1,459,482      
Total Test Values (4): 46,459,240   49,018,269      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,450,913

Confidence Interval Values (5)

Local Test Value: 46,459,240 (Outside Confidence Interval)
State Lower Limit: 46,567,356 (State Test Value minus Margin of Error Percent)
State Upper Limit: 51,469,182 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 56,686,679 (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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