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2007 Confidence Interval Detail
163/Medina
163-901/Devine ISD

Category Summary

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

Stratum
Variance
A 29,405,339 0.9824 29,932,145 8 754 .007987124
A 29,475,437 1.0116 29,137,443 8 439 .006725550
A 29,262,171 0.9537 30,682,784 10 291 .005432096
A 29,277,167 0.9534 30,708,168 7 172 .002579812
D3 75,229,239 1.1206 67,132,999 29 119,616 .271430470
F1 6,860,070 0.9664 7,098,582 7 102 .008900803
F1 7,010,262 0.8965 7,819,590 6 34 .023542236
F1 6,987,248 0.9568 7,302,726 5 16 .002684732
F1 6,428,357 0.9829 6,540,194 3 5 .002059404
L1 2,981,123 0.9030 3,301,354 8 87 .037548154
L1 3,098,817 0.8957 3,459,659 5 15 .087147807
L1 3,244,552 1.0232 3,170,985 3 5 .000306737
Random Totals: 229,259,782   226,286,629 99 121,536  
Catg D1 Exception Values: 12,956,287   12,662,849      
Catg L1 Exception Values: 1,707,879   1,845,593      
Total Test Values (4): 243,923,948   240,795,071      

Margin of Error

Margin of Error Percent: 5.5338923
Margin of Error Value: 13,325,340

Confidence Interval Values (5)

State Lower Limit: 227,469,731 (State Test Value minus Margin of Error Percent)
Local Test Value: 243,923,948 (Within Confidence Interval)
State Upper Limit: 254,120,411 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 251,646,201 (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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