taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
072/Erath
072-903/Stephenville ISD

Category Summary

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

Stratum
Variance
A 134,661,620 0.9117 147,703,872 57 2,018 .029956215
A 134,900,490 0.9441 142,887,925 58 1,244 .007389964
A 135,454,230 0.9536 142,045,124 60 903 .013515467
A 140,303,610 0.9807 143,064,760 30 546 .022195835
B 18,807,090 0.9151 20,551,951 16 158 .026204032
B 20,173,340 0.9684 20,831,619 8 39 .000556884
B 25,220,080 0.9416 26,784,282 4 8 .002518433
E 215,063,470 0.9184 234,171,897 15 1,723 .016089419
F1 52,486,880 0.9356 56,099,701 11 348 .008413480
F1 55,291,360 0.9371 59,002,625 9 136 .006666270
F1 55,960,830 0.9492 58,955,784 9 60 .035266294
F1 57,537,180 1.0065 57,165,604 6 16 .008304975
L1 21,642,990 1.0447 20,716,943 10 359 .028686490
L1 23,592,360 1.0013 23,561,730 9 92 .000445856
L1 28,103,740 1.0151 27,685,686 7 36 .000713335
L1 19,721,050 0.9815 20,092,766 4 6 .009860066
Random Totals: 1,138,920,320   1,201,322,269 313 7,692  
Catg D1 Exception Values: 14,957,000   12,132,195      
Catg B Exception Values: 11,401,270   12,396,800      
Total Test Values (4): 1,165,278,590   1,225,851,264      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 61,292,563

Confidence Interval Values (5)

State Lower Limit: 1,164,558,701 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,165,278,590 (Within Confidence Interval)
State Upper Limit: 1,287,143,827 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,399,503,654 (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