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2011 Confidence Interval Detail
050/Coryell
050-909/Jonesboro ISD

Category Summary

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

Stratum
Variance
A 3,537,570 0.9498 3,724,542 11 83 .027208940
A 4,080,720 0.9354 4,362,540 10 56 .022293204
A 4,235,030 0.9226 4,590,321 10 40 .013882344
A 3,473,650 0.9898 3,509,446 11 18 .016949666
D3 17,169,262 0.9682 17,733,177 15 1,107 .019300633
Random Totals: 32,496,232   33,920,026 57 1,304  
Catg J Exception Values: 35,980   37,866      
Catg D1 Exception Values: 5,672,307   6,248,809      
Total Test Values (4): 38,204,519   40,206,701      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,010,335

Confidence Interval Values (5)

State Lower Limit: 38,196,366 (State Test Value minus Margin of Error Percent)
Local Test Value: 38,204,519 (Within Confidence Interval)
State Upper Limit: 42,217,036 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 36,067,760 (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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