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2012 Confidence Interval Detail
158/Matagorda
158-902/Tidehaven ISD

Category Summary

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

Stratum
Variance
A 17,437,720 1.0051 17,349,239 12 436 .020068706
A 18,116,330 0.9679 18,717,151 12 248 .022234607
A 17,756,850 1.0162 17,473,775 12 149 .008450742
A 18,319,350 0.9791 18,710,397 9 94 .006877775
D3 46,410,266 1.0455 44,390,498 14 3,001 .094530497
G1 21,895,450 0.9347 23,425,110 8 32 .071080462
G1 23,337,410 1.0140 23,015,197 4 7 .003719116
Random Totals: 163,273,376   163,081,367 71 3,967  
Catg J Exception Values: 15,336,170   17,023,706      
Catg D1 Exception Values: 26,025,054   31,769,837      
Catg G1 Exception Values: 37,203,700   37,359,273      
Total Test Values (4): 241,838,300   249,234,183      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 12,461,709

Confidence Interval Values (5)

State Lower Limit: 236,772,474 (State Test Value minus Margin of Error Percent)
Local Test Value: 241,838,300 (Within Confidence Interval)
State Upper Limit: 261,695,892 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,464,565,255 (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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