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2007 Confidence Interval Detail
073/Falls
073-903/Marlin ISD

Category Summary

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

Stratum
Variance
A 20,359,052 0.9306 21,877,339 18 964 .159655910
A 20,305,347 1.0445 19,440,256 18 496 .086397258
A 20,296,680 1.2103 16,769,958 15 323 .039248348
A 20,273,724 1.1143 18,194,134 16 202 .026125410
D3 24,282,940 0.7998 30,361,265 21 3,111 .048120587
F1 4,087,943 0.7917 5,163,500 11 145 .168485498
F1 4,103,231 0.6085 6,743,190 9 52 .327981763
F1 4,308,502 0.9128 4,720,094 7 19 .047116709
F1 3,658,333 0.5964 6,134,026 3 6 .098025472
L1 3,431,504 1.1443 2,998,780 7 153 .070797851
L1 3,550,674 1.0231 3,470,505 6 29 .006733142
L1 4,333,683 0.8345 5,193,149 4 11 .005379847
Random Totals: 132,991,613   141,066,196 135 5,511  
Catg J Exception Values: 21,643,513   21,492,835      
Catg D1 Exception Values: 22,258,770   18,926,994      
Catg L1 Exception Values: 2,423,180   2,336,161      
Total Test Values (4): 179,317,076   183,822,186      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 9,191,109

Confidence Interval Values (5)

State Lower Limit: 174,631,077 (State Test Value minus Margin of Error Percent)
Local Test Value: 179,317,076 (Within Confidence Interval)
State Upper Limit: 193,013,295 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 173,153,116 (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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