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2011 Confidence Interval Detail
086/Gillespie
086-901/Fredericksburg ISD

Category Summary

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

Stratum
Variance
A 284,530,390 0.9792 290,574,336 40 2,069 .011962798
A 244,595,006 0.9927 246,393,680 37 1,265 .006402322
A 256,872,784 0.9946 258,267,428 36 1,018 .004392503
A 279,733,840 0.9353 299,084,615 19 678 .007791140
D3 780,525,341 0.9592 813,725,335 53 15,336 .046257806
F1 106,783,434 0.9249 115,454,032 10 517 .002117804
F1 107,121,929 0.9640 111,122,333 10 211 .002783774
F1 106,774,200 1.0094 105,779,869 9 93 .009929205
F1 104,681,721 1.0402 100,636,148 8 30 .017697615
Random Totals: 2,271,618,645   2,341,037,776 222 21,217  
Catg D1 Exception Values: 32,366,069   35,007,606      
Total Test Values (4): 2,303,984,714   2,376,045,382      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 118,802,269

Confidence Interval Values (5)

State Lower Limit: 2,257,243,113 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,303,984,714 (Within Confidence Interval)
State Upper Limit: 2,494,847,651 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,326,933,593 (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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