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2006 Confidence Interval Detail
126/Johnson
126-901/Alvarado ISD

Category Summary

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

Stratum
Variance
A 94,776,177 1.0076 94,061,311 25 1,602 .042023842
A 95,059,064 0.9559 99,444,570 24 1,008 .022255560
A 94,502,887 0.9827 96,166,569 21 763 .014656590
A 94,761,039 0.9178 103,248,027 17 449 .037649882
C 8,010,161 1.0465 7,654,239 10 661 .181948876
C 7,964,217 1.0239 7,778,315 10 381 .052463460
C 7,973,963 0.8483 9,399,933 11 274 .510009259
C 7,942,615 1.1560 6,870,774 7 121 .032027780
D3 106,464,184 0.8153 130,582,833 21 2,104 .209546487
F1 11,343,325 0.6787 16,713,312 12 111 .517587611
F1 11,552,155 0.8832 13,079,886 10 47 .067723863
F1 11,656,998 0.8224 14,174,365 8 23 .042489455
F1 10,726,957 1.1569 9,272,156 4 7 .047687921
Random Totals: 562,733,742   608,446,290 180 7,551  
Catg J Exception Values: 20,129,059   23,151,744      
Catg D1 Exception Values: 4,222,699   4,531,782      
Total Test Values (4): 587,085,500   636,129,816      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 31,806,491

Confidence Interval Values (5)

Local Test Value: 587,085,500 (Outside Confidence Interval)
State Lower Limit: 604,323,325 (State Test Value minus Margin of Error Percent)
State Upper Limit: 667,936,307 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 675,301,320 (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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