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2011 Confidence Interval Detail
225/Titus
225-905/Winfield ISD

Category Summary

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

Stratum
Variance
A 2,730,873 0.9643 2,831,974 15 84 .106066814
A 2,168,618 0.9904 2,189,639 10 35 .014786017
A 2,418,461 0.9128 2,649,497 14 25 .017310495
A 1,694,957 0.9472 1,789,439 11 10 .006958699
D3 9,460,576 0.9378 10,088,053 15 497 .044082436
F1 3,361,843 0.8704 3,862,412 11 42 .080774860
Random Totals: 21,835,328   23,411,014 76 693  
Catg J Exception Values: 60,734   56,160      
Catg D1 Exception Values: 2,133,014   1,778,818      
Total Test Values (4): 24,029,076   25,245,992      

Margin of Error

Margin of Error Percent: 5.1479894
Margin of Error Value: 1,299,661

Confidence Interval Values (5)

State Lower Limit: 23,946,331 (State Test Value minus Margin of Error Percent)
Local Test Value: 24,029,076 (Within Confidence Interval)
State Upper Limit: 26,545,653 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 61,097,655 (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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