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2011 Confidence Interval Detail
110/Hockley
110-908/Whitharral ISD

Category Summary

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

Stratum
Variance
A 1,339,580 0.9990 1,340,921 10 41 .002434546
A 1,129,030 0.9507 1,187,578 10 16 .003127030
A 1,306,720 0.9561 1,366,719 6 13 .002279081
A 1,500,760 0.9548 1,571,806 4 8 .005423048
D3 7,914,767 0.9929 7,971,364 17 827 .002939698
G1 35,917,900 0.9816 36,591,178 8 42 .019441163
Random Totals: 49,108,757   50,029,566 55 947  
Catg J Exception Values: 234,900   278,294      
Catg D1 Exception Values: 17,542,262   17,653,250      
Catg G1 Exception Values: 12,699,060   12,236,169      
Total Test Values (4): 79,584,979   80,197,279      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 4,009,864

Confidence Interval Values (5)

State Lower Limit: 76,187,415 (State Test Value minus Margin of Error Percent)
Local Test Value: 79,584,979 (Within Confidence Interval)
State Upper Limit: 84,207,143 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 82,999,507 (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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