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2011 Confidence Interval Detail
188/Potter
219-901/Happy ISD

Category Summary

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

Stratum
Variance
A 4,475,202 0.9736 4,596,551 12 50 .005949573
D3 5,062,396 0.9772 5,180,512 15 350 .027904099
F1 2,040,435 0.9964 2,047,807 3 4 .000004341
L1 154,445 0.9792 157,726 5 12 .001436276
Random Totals: 11,732,478   11,982,596 35 416  
Catg J Exception Values: 656,485   630,019      
Catg D1 Exception Values: 8,394,091   8,271,098      
Catg L1 Exception Values: 2,118,110   2,144,602      
Total Test Values (4): 22,901,164   23,028,315      

Margin of Error

Margin of Error Percent: 5.0000011
Margin of Error Value: 1,151,416

Confidence Interval Values (5)

State Lower Limit: 21,876,899 (State Test Value minus Margin of Error Percent)
Local Test Value: 22,901,164 (Within Confidence Interval)
State Upper Limit: 24,179,731 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 22,871,856 (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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