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2011 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 448,015,546 1.0677 419,608,079 10 10,865 .005271140
A 441,145,761 1.0900 404,720,882 11 6,128 .014986379
A 454,205,275 0.9835 461,825,394 10 4,507 .030115041
A 445,647,387 1.0515 423,820,625 10 2,543 .009127255
C 55,220,951 0.8916 61,934,669 21 3,039 .152558042
C 47,509,530 1.0250 46,350,761 11 1,187 .005592821
C 54,105,980 1.0107 53,533,175 10 400 .088012669
C 58,034,720 0.9932 58,432,058 10 90 .000482203
F1 224,148,365 0.9040 247,951,731 10 958 .016633605
F1 218,358,127 0.9766 223,590,136 11 313 .001167165
F1 251,432,717 1.0007 251,256,837 9 133 .004606300
F1 208,830,636 0.9859 211,817,259 8 35 .000452487
L1 77,723,747 1.0958 70,928,771 10 827 .012917085
L1 81,063,417 1.0448 77,587,497 9 178 .008237414
L1 67,306,278 0.9422 71,435,235 8 40 .011751992
L1 84,109,657 1.0000 84,109,657 6 14 .000882972
Random Totals: 3,216,858,094   3,168,902,766 164 31,257  
Catg D1 Exception Values: 4,870,239   5,345,784      
Total Test Values (4): 3,221,728,333   3,174,248,550      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 158,712,428

Confidence Interval Values (5)

State Lower Limit: 3,015,536,122 (State Test Value minus Margin of Error Percent)
Local Test Value: 3,221,728,333 (Within Confidence Interval)
State Upper Limit: 3,332,960,978 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 3,405,539,637 (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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