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2009 Confidence Interval Detail
144/Lee
144-901/Giddings ISD

Category Summary

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

Stratum
Variance
A 34,048,606 0.9142 37,244,154 7 657 .024062696
A 34,493,135 0.9235 37,350,444 7 356 .025841479
A 38,400,933 0.9808 39,152,664 7 273 .004235806
A 41,706,000 1.0246 40,704,665 7 177 .013985601
D3 182,013,329 1.0731 169,614,508 17 6,488 .058403510
F1 20,296,717 1.0330 19,648,322 10 205 .052706392
F1 22,036,672 0.9552 23,070,218 7 82 .035604927
F1 21,975,070 1.0298 21,339,163 6 39 .016863746
F1 21,756,289 0.9498 22,906,179 5 16 .005299057
G1 43,169,022 1.0772 40,075,215 11 143 .213127582
G1 44,133,751 1.0185 43,332,107 6 48 .013562194
G1 42,736,747 0.9957 42,921,309 7 27 .020535856
G1 42,303,714 1.1187 37,815,066 5 14 .013723304
L1 9,721,430 1.2220 7,955,344 7 186 .018067159
L1 10,523,590 1.0519 10,004,364 9 48 .012590563
L1 7,380,390 0.9818 7,517,203 5 13 .000221839
Random Totals: 616,695,395   600,650,925 123 8,772  
Catg J Exception Values: 9,701,800   8,383,824      
Catg D1 Exception Values: 10,150,629   8,359,038      
Catg L1 Exception Values: 10,558,020   10,409,423      
Total Test Values (4): 647,105,844   627,803,210      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 31,390,161

Confidence Interval Values (5)

State Lower Limit: 596,413,049 (State Test Value minus Margin of Error Percent)
Local Test Value: 647,105,844 (Within Confidence Interval)
State Upper Limit: 659,193,371 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 698,831,958 (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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