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2007 Confidence Interval Detail
016/Blanco
016-902/Blanco ISD

Category Summary

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

Stratum
Variance
A 22,676,762 0.9393 24,142,193 7 205 .021830168
A 22,665,889 0.8278 27,380,876 8 135 .019330827
A 22,560,924 0.9419 23,952,568 7 101 .010140754
A 22,524,854 0.9182 24,531,533 7 63 .023765597
C 18,136,279 0.9995 18,145,352 10 611 .002338043
C 18,124,346 1.1439 15,844,345 54 345 .009654410
C 18,063,309 1.1309 15,972,508 57 232 .018308685
C 18,103,259 1.0607 17,067,275 27 125 .005954332
D3 352,458,667 0.9799 359,688,404 22 6,515 .029638977
F1 9,454,154 1.1077 8,534,941 6 74 .008389233
F1 9,213,482 0.9210 10,003,781 6 34 .082293213
F1 9,391,040 1.0858 8,648,959 5 21 .010781859
F1 8,975,075 0.9693 9,259,337 4 8 .001171228
Random Totals: 552,348,040   563,172,072 220 8,469  
Catg D1 Exception Values: 15,044,358   14,648,222      
Total Test Values (4): 567,392,398   577,820,294      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 28,891,015

Confidence Interval Values (5)

State Lower Limit: 548,929,279 (State Test Value minus Margin of Error Percent)
Local Test Value: 567,392,398 (Within Confidence Interval)
State Upper Limit: 606,711,309 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 554,781,328 (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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