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2009 Confidence Interval Detail
178/Nueces
178-902/Bishop ISD

Category Summary

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

Stratum
Variance
A 27,143,264 1.0596 25,616,519 8 602 .041241818
A 28,451,471 1.0213 27,858,094 8 396 .012469091
A 33,048,562 1.1180 29,560,431 8 332 .004159940
A 34,698,764 1.0006 34,677,957 8 197 .003003835
D3 18,779,074 1.0300 18,232,111 12 1,361 .024662393
G1 10,326,266 1.0867 9,502,407 9 39 .009282941
G1 10,852,759 1.0306 10,530,525 5 16 .021781226
G1 9,674,031 0.9978 9,695,361 5 9 .002541574
G1 10,033,209 0.9500 10,561,273 4 5 .024078830
Random Totals: 183,007,400   176,234,678 67 2,957  
Catg J Exception Values: 23,335,972   23,536,209      
Catg D1 Exception Values: 34,154,946   36,023,370      
Total Test Values (4): 240,498,318   235,794,257      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 11,789,713

Confidence Interval Values (5)

State Lower Limit: 224,004,544 (State Test Value minus Margin of Error Percent)
Local Test Value: 240,498,318 (Within Confidence Interval)
State Upper Limit: 247,583,970 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 497,462,413 (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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