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2009 Confidence Interval Detail
188/Potter
188-903/Highland Park ISD

Category Summary

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

Stratum
Variance
A 9,848,465 0.9888 9,960,017 7 270 .001953080
A 10,044,233 0.9447 10,632,193 7 137 .001052935
A 10,809,078 0.9636 11,217,391 5 72 .000689074
A 9,813,387 0.9466 10,366,984 5 30 .003498686
F1 20,735,468 0.9672 21,438,656 6 61 .001936805
F1 21,676,388 0.6485 33,425,425 5 22 .300280001
F1 18,830,200 0.9018 20,880,683 4 8 .021849208
F1 25,854,891 0.8238 31,384,913 2 5 .003015135
G1 10,122,440 1.0109 10,013,295 6 26 .067360025
G1 9,524,490 1.0346 9,205,964 5 10 .013732328
G1 8,948,240 1.0400 8,604,077 3 5 .004381995
G1 9,523,170 1.0021 9,503,213 2 3 .007217969
L1 37,832,388 0.9969 37,950,033 7 96 .002448914
L1 49,158,333 0.9998 49,168,167 5 28 .001316971
L1 14,861,479 1.0378 14,320,176 4 3 .001304048
L1 50,867,603 1.0030 50,715,457 2 4 .000016558
Random Totals: 318,450,253   338,786,644 75 780  
Catg J Exception Values: 172,685,540   150,220,094      
Catg D1 Exception Values: 5,810,440   7,192,256      
Catg F1 Exception Values: 31,713,604   26,870,387      
Total Test Values (4): 528,659,837   523,069,381      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 26,153,469

Confidence Interval Values (5)

State Lower Limit: 496,915,912 (State Test Value minus Margin of Error Percent)
Local Test Value: 528,659,837 (Within Confidence Interval)
State Upper Limit: 549,222,850 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 836,371,686 (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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