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2009 Confidence Interval Detail
156/Martin
156-902/Stanton ISD

Category Summary

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

Stratum
Variance
A 7,480,220 0.8663 8,634,676 16 326 .062337609
A 7,715,450 1.0075 7,658,015 12 185 .022126100
A 7,421,730 0.9894 7,501,243 13 106 .005729598
A 8,180,680 0.9093 8,996,679 12 65 .020216070
D3 29,629,580 0.6428 46,094,555 23 2,362 .231825930
G1 105,574,770 0.9802 107,707,376 15 228 .010185291
G1 106,114,090 1.0069 105,386,920 13 83 .002867481
G1 110,126,800 0.9927 110,936,637 11 36 .003523816
G1 99,397,970 1.0830 91,780,212 6 10 .035155834
Random Totals: 481,641,290   494,696,313 121 3,401  
Catg J Exception Values: 9,275,299   9,423,674      
Catg D1 Exception Values: 25,228,120   29,737,941      
Total Test Values (4): 516,144,709   533,857,928      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,692,896

Confidence Interval Values (5)

State Lower Limit: 507,165,032 (State Test Value minus Margin of Error Percent)
Local Test Value: 516,144,709 (Within Confidence Interval)
State Upper Limit: 560,550,824 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 707,867,046 (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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