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2008 Confidence Interval Detail
187/Polk
187-907/Livingston ISD

Category Summary

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

Stratum
Variance
A 139,384,086 0.7506 185,696,890 36 3,748 .107292058
A 140,852,938 0.8218 171,395,641 48 1,810 .072908568
A 144,968,079 0.7015 206,654,425 35 1,162 .093947911
A 152,707,887 0.6536 233,641,198 23 641 .093132942
C 15,740,682 0.8025 19,614,557 39 8,305 .406725097
C 14,785,977 0.7650 19,328,075 19 2,821 .524531150
C 18,617,628 0.7306 25,482,655 14 1,210 .388375158
C 19,747,039 0.8520 23,177,276 11 245 .061829047
D3 98,753,808 0.8958 110,240,911 35 4,170 .154277136
F1 39,198,293 0.8805 44,518,220 11 312 .081528460
F1 39,592,036 1.0457 37,861,754 7 90 .005015933
F1 51,394,047 0.7002 73,399,096 9 41 .144881274
F1 48,692,225 0.9259 52,589,075 4 11 .006422807
L1 16,379,125 1.0794 15,174,287 7 512 .025952209
L1 19,533,666 0.8459 23,092,169 7 98 .134670811
L1 16,980,221 0.9124 18,610,501 5 19 .047628439
L1 15,571,362 1.0412 14,955,207 2 3 .004733764
Random Totals: 992,899,099   1,275,431,937 312 25,198  
Catg D1 Exception Values: 29,919,924   29,954,125      
Total Test Values (4): 1,022,819,023   1,305,386,062      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 65,269,303

Confidence Interval Values (5)

Local Test Value: 1,022,819,023 (Outside Confidence Interval)
State Lower Limit: 1,240,116,759 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,370,655,365 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,267,744,994 (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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