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2009 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 434,097,907 1.0104 429,629,758 25 10,486 .043414174
A 425,077,839 1.0489 405,260,596 74 5,946 .032372411
A 420,158,028 1.0430 402,836,077 42 4,206 .017688349
A 448,218,730 1.0383 431,685,187 28 2,571 .014533953
C 62,005,894 1.0721 57,835,924 9 3,517 .028074468
C 64,484,030 0.8584 75,121,191 7 1,647 .049440452
C 63,435,818 1.0192 62,240,795 7 497 .000222651
C 70,855,407 1.0032 70,629,393 7 115 .000512109
F1 234,724,172 1.1079 211,864,042 8 978 .074434818
F1 219,918,630 0.8612 255,363,017 7 289 .055950572
F1 222,385,858 0.7527 295,450,854 7 110 .078202477
F1 212,072,245 1.0265 206,597,414 7 33 .001596498
L1 87,501,790 1.2405 70,537,517 7 790 .081011895
L1 79,154,740 0.9634 82,161,864 8 159 .008917966
L1 92,133,393 1.0362 88,914,682 7 50 .007407224
L1 78,241,921 1.1198 69,871,335 4 12 .041376516
Random Totals: 3,214,466,402   3,215,999,646 254 31,406  
Catg D1 Exception Values: 5,219,727   5,501,090      
Total Test Values (4): 3,219,686,129   3,221,500,736      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 161,075,037

Confidence Interval Values (5)

State Lower Limit: 3,060,425,699 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,219,686,129 (Within Confidence Interval)
State Upper Limit: 3,382,575,773 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,444,297,171 (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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