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2007 Confidence Interval Detail
108/Hidalgo
108-909/Pharr-San Juan-Alamo ISD

Category Summary

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

Stratum
Variance
A 371,959,210 0.8828 421,340,292 13 9,367 .034970622
A 372,052,823 0.9926 374,826,539 15 5,580 .048651955
A 371,883,236 1.0575 351,662,635 27 4,037 .017666502
A 371,876,615 1.0388 357,986,730 38 2,405 .006558765
C 52,241,313 0.9596 54,440,718 8 3,732 .108391812
C 52,217,745 0.8637 60,458,197 8 1,821 .053461918
C 52,224,154 0.7418 70,401,933 7 687 .104646635
C 52,104,194 0.9926 52,492,640 7 113 .000398264
F1 169,633,340 0.8263 205,292,678 7 778 .006849382
F1 169,683,745 1.1045 153,629,466 7 249 .162193638
F1 168,914,135 0.7281 231,993,044 9 98 .032783387
F1 169,387,712 0.8853 191,333,686 6 27 .009069462
L1 81,816,972 1.1296 72,430,039 7 832 .017940876
L1 82,269,992 1.0386 79,212,394 8 165 .002068535
L1 83,213,068 1.0346 80,430,184 6 44 .025519400
L1 78,924,306 1.0342 76,314,355 4 10 .004352634
Random Totals: 2,700,402,560   2,834,245,530 177 29,945  
Catg D1 Exception Values: 4,871,838   4,995,792      
Total Test Values (4): 2,705,274,398   2,839,241,322      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 141,962,066

Confidence Interval Values (5)

State Lower Limit: 2,697,279,256 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,705,274,398 (Within Confidence Interval)
State Upper Limit: 2,981,203,388 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,857,158,740 (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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