Texas Comptroller of Public Accounts

Texas Comptroller of Public Accounts, Glenn Hegar

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2011 Confidence Interval Detail
097/Hamilton
018-908/Cranfills Gap ISD

Category Summary

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

Stratum
Variance
D3 13,122,300 0.9994 13,130,178 23 441 .001092951
Random Totals: 13,122,300   13,130,178 23 441  
Catg D1 Exception Values: 2,747,880   3,169,311      
Total Test Values (4): 15,870,180   16,299,489      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 814,974

Confidence Interval Values (5)

State Lower Limit: 15,484,515 (State Test Value minus Margin of Error Percent)
Local Test Value: 15,870,180 (Within Confidence Interval)
State Upper Limit: 17,114,463 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 15,177,720 (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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