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2008 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 8,762,235 1.0189 8,599,701 7 247 .004755896
A 8,425,532 0.9958 8,461,068 7 141 .043136900
A 10,822,140 0.9534 11,351,101 8 80 .017057880
A 11,173,259 0.9886 11,302,103 6 37 .011320389
F1 19,287,826 0.9155 21,068,079 13 61 .015972860
F1 18,283,570 0.9279 19,704,246 9 21 .126650897
F1 21,709,525 0.9311 23,315,997 6 10 .017467447
G1 12,128,450 1.0026 12,096,998 6 29 .007794797
G1 11,537,930 1.0839 10,644,829 4 11 .003217605
G1 13,061,770 1.0272 12,715,898 4 7 .004775632
L1 31,884,489 0.9971 31,977,223 7 96 .000635642
L1 32,285,046 1.0017 32,230,255 5 25 .000048552
L1 38,191,869 0.9930 38,461,097 4 11 .004102275
L1 49,845,784 1.0167 49,027,033 3 6 .000252123
Random Totals: 287,399,425   290,955,628 89 782  
Catg J Exception Values: 173,521,599   153,879,652      
Catg D1 Exception Values: 5,080,427   5,746,945      
Catg F1 Exception Values: 39,148,252   47,132,980      
Catg G1 Exception Values: 9,261,950   9,355,172      
Total Test Values (4): 514,411,653   507,070,377      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 25,353,519

Confidence Interval Values (5)

State Lower Limit: 481,716,858 (State Test Value minus Margin of Error Percent)
Local Test Value: 514,411,653 (Within Confidence Interval)
State Upper Limit: 532,423,896 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 840,699,507 (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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