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2011 Confidence Interval Detail
129/Kaufman
129-905/Mabank ISD

Category Summary

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

Stratum
Variance
A 33,261,730 1.0050 33,096,249 8 489 .030137045
A 33,026,630 1.0107 32,676,986 8 262 .026043239
A 32,973,720 0.9195 35,860,489 7 170 .056472407
A 35,614,088 0.9498 37,496,408 8 84 .007065375
C 3,994,380 1.0492 3,807,072 7 177 .053655818
C 2,723,080 1.0618 2,564,588 7 31 .007817772
C 5,386,860 1.0024 5,373,962 7 20 .000013165
D3 26,008,438 1.0219 25,451,060 15 1,060 .015582535
F1 6,287,278 0.8904 7,061,184 8 53 .021510299
F1 6,955,480 0.7950 8,749,031 7 23 .002348602
F1 9,121,670 0.8918 10,228,381 6 9 .007330808
Random Totals: 195,353,354   202,365,410 88 2,378  
Catg D1 Exception Values: 2,366,910   1,208,677      
Total Test Values (4): 197,720,264   203,574,087      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 10,178,704

Confidence Interval Values (5)

State Lower Limit: 193,395,383 (State Test Value minus Margin of Error Percent)
Local Test Value: 197,720,264 (Within Confidence Interval)
State Upper Limit: 213,752,791 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 230,557,490 (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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