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2007 Confidence Interval Detail
223/Terry
223-904/Wellman-Union CISD

Category Summary

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

Stratum
Variance
D3 6,604,820 0.8402 7,861,009 14 1,133 .007941495
G1 33,575,517 0.9695 34,631,786 12 39 .015092994
Random Totals: 40,180,337   42,492,795 26 1,172  
Catg J Exception Values: 2,780,170   2,783,179      
Catg D1 Exception Values: 40,390,710   43,088,044      
Catg G1 Exception Values: 24,210,959   24,083,340      
Total Test Values (4): 107,562,176   112,447,358      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 5,622,368

Confidence Interval Values (5)

State Lower Limit: 106,824,990 (State Test Value minus Margin of Error Percent)
Local Test Value: 107,562,176 (Within Confidence Interval)
State Upper Limit: 118,069,726 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 134,129,211 (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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