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2008 Confidence Interval Detail
126/Johnson
126-905/Joshua ISD

Category Summary

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

Stratum
Variance
A 162,018,188 1.0038 161,404,850 13 2,133 .005752164
A 186,450,722 0.9985 186,730,818 21 1,552 .004745883
A 198,029,437 0.9979 198,446,174 24 1,218 .002582355
A 223,040,469 0.9971 223,689,168 23 864 .002843732
D3 120,648,025 0.9257 130,331,668 21 2,064 .025425707
G1 93,607,118 1.0480 89,319,769 7 54 .082702650
G1 90,743,745 1.0123 89,641,159 6 29 .011753605
G1 92,917,522 1.0454 88,882,267 5 18 .008871927
G1 89,275,352 1.1009 81,093,062 4 10 .002145611
Random Totals: 1,256,730,578   1,249,538,935 124 7,942  
Catg D1 Exception Values: 2,583,215   2,143,766      
Total Test Values (4): 1,259,313,793   1,251,682,701      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 62,584,135

Confidence Interval Values (5)

State Lower Limit: 1,189,098,566 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,259,313,793 (Within Confidence Interval)
State Upper Limit: 1,314,266,836 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,430,105,546 (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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