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2007 Confidence Interval Detail
133/Kerr
133-901/Center Point ISD

Category Summary

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

Stratum
Variance
A 15,792,003 0.9886 15,974,108 13 331 .029259205
A 15,834,120 0.9524 16,625,493 11 184 .054682289
A 15,776,185 0.8947 17,632,933 11 112 .005707075
A 15,633,640 1.0107 15,468,131 11 68 .010205698
D3 110,097,311 0.9515 115,709,208 26 1,982 .042955778
F1 2,123,787 1.0144 2,093,639 11 26 .014159046
F1 2,067,019 0.9134 2,262,994 7 9 .019958548
Random Totals: 177,324,065   185,766,506 90 2,712  
Catg D1 Exception Values: 3,111,322   3,150,145      
Catg F1 Exception Values: 6,568,523   6,411,076      
Total Test Values (4): 187,003,910   195,327,727      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,766,386

Confidence Interval Values (5)

State Lower Limit: 185,561,341 (State Test Value minus Margin of Error Percent)
Local Test Value: 187,003,910 (Within Confidence Interval)
State Upper Limit: 205,094,113 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 177,372,416 (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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