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2008 Confidence Interval Detail
125/Jim Wells
125-905/Premont ISD

Category Summary

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

Stratum
Variance
A 6,388,893 0.9677 6,602,142 7 323 .012174468
A 6,796,241 1.0391 6,540,507 7 201 .021985017
A 6,798,106 0.9525 7,137,119 7 140 .008215781
A 6,669,143 0.9250 7,209,884 6 83 .001662387
D3 14,457,641 0.8877 16,286,629 14 1,265 .028660437
G1 2,368,260 0.6621 3,576,892 5 15 .479188699
G1 2,309,560 0.8497 2,718,089 3 4 .096983202
Random Totals: 45,787,844   50,071,262 49 2,031  
Catg J Exception Values: 8,621,935   8,378,021      
Catg D1 Exception Values: 8,733,870   8,364,756      
Catg G1 Exception Values: 12,051,495   12,001,665      
Total Test Values (4): 75,195,144   78,815,704      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,940,785

Confidence Interval Values (5)

State Lower Limit: 74,874,919 (State Test Value minus Margin of Error Percent)
Local Test Value: 75,195,144 (Within Confidence Interval)
State Upper Limit: 82,756,489 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 115,870,452 (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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