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2011 Confidence Interval Detail
175/Navarro
175-903/Corsicana ISD

Category Summary

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

Stratum
Variance
A 125,234,370 1.0195 122,839,009 25 2,942 .007061408
A 123,187,820 1.0150 121,367,310 25 1,590 .004329459
A 126,745,150 1.0262 123,509,209 25 1,110 .005820253
A 137,146,750 1.0022 136,845,689 25 653 .000593770
D3 141,885,271 1.0052 141,151,284 17 4,259 .017330936
F1 52,718,000 0.9988 52,781,338 11 480 .020385338
F1 52,978,090 0.9221 57,453,736 9 140 .025080890
F1 54,444,010 0.6576 82,791,986 9 47 .636526828
F1 54,655,260 0.8259 66,176,607 5 12 .084587866
L1 22,896,400 1.0098 22,674,193 10 324 .007780157
L1 25,480,190 1.0054 25,343,336 9 61 .007171562
L1 29,184,200 0.9931 29,386,970 5 15 .004968743
Random Totals: 946,555,511   982,320,667 175 11,633  
Catg J Exception Values: 24,340,006   32,819,176      
Catg D1 Exception Values: 8,269,784   8,057,361      
Catg L1 Exception Values: 21,604,780   21,083,773      
Total Test Values (4): 1,000,770,081   1,044,280,977      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 52,214,049

Confidence Interval Values (5)

State Lower Limit: 992,066,928 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,000,770,081 (Within Confidence Interval)
State Upper Limit: 1,096,495,026 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,349,252,261 (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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