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2007 Confidence Interval Detail
163/Medina
163-908/Medina Valley ISD

Category Summary

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

Stratum
Variance
A 121,935,265 0.9771 124,793,025 7 1,989 .022821678
A 121,936,566 0.9412 129,554,363 7 958 .007803070
A 121,924,335 1.0343 117,881,016 8 631 .003405595
A 121,829,944 0.9905 122,998,429 7 376 .001988411
C 17,216,436 1.1065 15,559,364 7 903 .012072330
C 16,549,832 0.8015 20,648,574 8 501 .146366171
C 16,785,257 0.9602 17,481,001 8 349 .018620605
C 16,634,762 0.9922 16,765,533 8 154 .001850951
D3 121,563,228 0.9951 122,161,821 36 162,797 .219338689
F1 11,377,762 0.9449 12,041,234 7 98 .013039199
F1 12,034,385 0.9759 12,331,576 6 42 .002500530
F1 11,514,382 0.9637 11,948,098 6 15 .004186296
Random Totals: 711,302,154   724,164,034 115 168,813  
Catg D1 Exception Values: 19,473,807   18,328,478      
Catg F1 Exception Values: 37,208,990   38,340,128      
Total Test Values (4): 767,984,951   780,832,640      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 39,041,632

Confidence Interval Values (5)

State Lower Limit: 741,791,008 (State Test Value minus Margin of Error Percent)
Local Test Value: 767,984,951 (Within Confidence Interval)
State Upper Limit: 819,874,272 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 771,815,036 (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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