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2006 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 43,888,171 0.7633 57,497,931 16 1,171 .045282243
A 43,832,549 0.8274 52,976,250 13 610 .017197458
A 43,835,055 0.9559 45,857,365 19 427 .010180040
A 43,799,738 0.9434 46,427,537 18 271 .023568013
D3 63,050,586 0.7953 79,278,997 20 3,051 .084293490
F1 8,015,657 0.8430 9,508,490 8 173 .137814750
F1 8,046,747 0.8238 9,767,840 7 52 .108555879
F1 7,828,979 0.9064 8,637,444 6 16 .012883156
F1 7,832,809 0.9917 7,898,365 3 4 .001276655
G1 52,940,961 1.0203 51,887,642 7 117 .013111787
G1 53,796,209 1.0364 51,906,801 6 45 .003606188
G1 52,403,549 1.0141 51,674,932 5 18 .002627960
G1 52,375,320 1.1024 47,510,269 4 9 .000788490
Random Totals: 481,646,330   520,829,863 132 5,964  
Catg D1 Exception Values: 6,855,110   6,204,938      
Total Test Values (4): 488,501,440   527,034,801      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,351,740

Confidence Interval Values (5)

Local Test Value: 488,501,440 (Outside Confidence Interval)
State Lower Limit: 500,683,061 (State Test Value minus Margin of Error Percent)
State Upper Limit: 553,386,541 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 509,496,939 (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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