Christmas and New Year’s Holiday Hours

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2007 Confidence Interval Detail
228/Trinity
228-903/Trinity ISD

Category Summary

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

Stratum
Variance
A 35,518,388 0.6996 50,769,565 17 1,580 .381489230
A 35,476,734 0.9171 38,683,605 18 724 .049100894
A 35,463,264 0.8767 40,450,854 17 410 .062613708
A 35,484,059 1.1041 32,138,447 17 224 .022238396
C 10,331,443 1.2146 8,506,046 17 3,514 .604795955
C 9,350,874 1.3021 7,181,379 19 2,068 .189694347
C 7,228,731 0.9004 8,028,355 19 856 1.625257156
C 8,458,664 1.0485 8,067,395 8 346 .168052585
D3 21,954,272 0.8584 25,575,806 21 1,694 .036888554
F1 4,498,667 0.6810 6,605,972 10 116 .355847222
F1 4,655,636 0.8880 5,242,833 8 42 .056244040
F1 4,795,518 0.7042 6,809,881 7 15 .152398841
F1 4,030,223 0.9008 4,474,049 4 6 .026530231
L1 3,671,582 0.9351 3,926,406 7 108 .011832572
L1 3,806,875 1.0000 3,806,875 5 16 .000575197
L1 6,773,828 1.0127 6,688,879 4 9 .008524009
Random Totals: 231,498,758   256,956,347 198 11,728  
Catg J Exception Values: 8,208,728   8,181,143      
Catg D1 Exception Values: 10,976,052   10,567,541      
Total Test Values (4): 250,683,538   275,705,031      

Margin of Error

Margin of Error Percent: 6.4135456
Margin of Error Value: 17,682,468

Confidence Interval Values (5)

Local Test Value: 250,683,538 (Outside Confidence Interval)
State Lower Limit: 258,022,563 (State Test Value minus Margin of Error Percent)
State Upper Limit: 293,387,499 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 220,201,883 (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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