taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
224/Throckmorton
224-901/Throckmorton ISD

Category Summary

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

Stratum
Variance
A 3,272,000 0.9164 3,570,493 10 159 .008866011
A 3,284,490 1.0037 3,272,382 9 89 .015975046
A 3,386,370 0.9515 3,558,981 9 59 .006697295
A 3,416,780 0.9334 3,660,574 8 37 .004148930
D3 12,196,530 0.9326 13,077,986 15 2,909 .043693002
G1 18,474,980 0.9434 19,583,400 9 117 .059867806
G1 18,474,430 0.9965 18,539,318 8 42 .003795322
G1 18,025,350 0.9844 18,311,002 6 17 .003213487
G1 18,094,650 0.9786 18,490,343 4 6 .002293147
Random Totals: 98,625,580   102,064,479 78 3,435  
Catg J Exception Values: 7,213,870   7,366,287      
Catg D1 Exception Values: 22,209,480   27,937,371      
Total Test Values (4): 128,048,930   137,368,137      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 6,868,407

Confidence Interval Values (5)

Local Test Value: 128,048,930 (Outside Confidence Interval)
State Lower Limit: 130,499,730 (State Test Value minus Margin of Error Percent)
State Upper Limit: 144,236,544 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 136,828,786 (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