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2010 Confidence Interval Detail
154/Madison
154-903/North Zulch ISD

Category Summary

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

Stratum
Variance
A 3,530,190 0.9371 3,767,143 9 116 .039328221
A 4,374,380 0.9153 4,779,176 10 74 .016448575
A 3,806,820 0.9904 3,843,720 11 32 .000533792
A 4,373,360 0.9472 4,617,145 8 21 .009104125
D3 38,688,110 0.9790 39,517,988 23 1,578 .018801210
G1 12,800,009 1.0240 12,500,009 11 40 .040613170
G1 11,277,538 1.0046 11,225,899 5 7 .000273251
Random Totals: 78,850,407   80,251,080 77 1,868  
Catg J Exception Values: 7,256,935   7,376,473      
Catg D1 Exception Values: 3,009,332   3,098,478      
Catg G1 Exception Values: 23,915,079   24,020,669      
Total Test Values (4): 113,031,753   114,746,700      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 5,737,335

Confidence Interval Values (5)

State Lower Limit: 109,009,365 (State Test Value minus Margin of Error Percent)
Local Test Value: 113,031,753 (Within Confidence Interval)
State Upper Limit: 120,484,035 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 134,732,842 (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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