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2011 Confidence Interval Detail
092/Gregg
092-901/Gladewater ISD

Category Summary

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

Stratum
Variance
A 27,557,450 0.8654 31,843,598 10 637 .006114065
A 27,196,300 0.9547 28,486,750 12 314 .005251447
A 28,993,920 0.9671 29,980,271 12 222 .006180430
A 30,079,785 0.9429 31,901,352 10 153 .012693205
D3 22,053,507 1.0079 21,880,650 15 869 .016038960
F1 8,386,040 0.9513 8,815,347 10 153 .068653494
F1 9,450,128 0.8808 10,729,028 8 61 .035266986
F1 9,149,830 0.9534 9,597,053 7 23 .022616577
F1 8,551,930 0.9391 9,106,517 4 9 .006646823
G1 20,913,418 1.0604 19,722,197 9 101 .008638178
G1 20,664,819 0.9767 21,157,796 9 38 .044895622
G1 20,633,660 0.9935 20,768,656 7 18 .004209525
G1 20,337,449 1.0038 20,260,459 4 8 .003855475
L1 4,379,050 1.1274 3,884,203 9 129 .051875559
L1 3,501,310 1.0043 3,486,319 8 31 .007831074
L1 5,105,520 1.0359 4,928,584 7 24 .001655355
L1 5,095,920 0.9114 5,591,310 4 8 .017551291
Random Totals: 272,050,036   282,140,090 145 2,798  
Catg J Exception Values: 4,561,946   4,534,570      
Catg D1 Exception Values: 1,548,841   1,220,957      
Total Test Values (4): 278,160,823   287,895,617      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 14,394,781

Confidence Interval Values (5)

State Lower Limit: 273,500,836 (State Test Value minus Margin of Error Percent)
Local Test Value: 278,160,823 (Within Confidence Interval)
State Upper Limit: 302,290,398 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 290,302,754 (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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