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2007 Confidence Interval Detail
057/Dallas
057-904/Cedar Hill ISD

Category Summary

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

Stratum
Variance
A 490,381,793 0.8980 546,082,175 21 4,413 .050257858
A 488,972,893 0.9702 503,991,850 17 3,559 .011125291
A 489,707,688 0.9793 500,058,907 21 2,682 .009037945
A 489,441,547 0.9879 495,436,327 22 1,196 .003217398
C 37,995,231 0.9984 38,056,121 12 1,006 .028575957
C 35,928,118 1.0037 35,795,674 12 516 .026078596
C 36,908,473 1.0232 36,071,612 12 301 .018443444
C 36,741,541 1.0253 35,834,918 6 69 .034775516
F1 105,396,249 0.8922 118,130,743 7 159 .019064232
F1 110,836,018 0.8428 131,509,276 6 38 .016747909
F1 100,689,567 0.8942 112,602,960 4 11 .013532801
F1 104,545,390 0.8689 120,319,243 3 4 .005892681
L1 41,639,382 0.9682 43,007,005 7 235 .076386783
L1 40,862,365 1.0638 38,411,699 7 30 .002406515
L1 41,604,256 1.1019 37,756,835 6 11 .007780988
L1 40,621,523 1.0302 39,430,715 3 4 .000805080
Random Totals: 2,692,272,034   2,832,496,060 166 14,234  
Catg D1 Exception Values: 369,503   329,992      
Total Test Values (4): 2,692,641,537   2,832,826,052      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 141,641,303

Confidence Interval Values (5)

State Lower Limit: 2,691,184,749 (State Test Value minus Margin of Error Percent)
Local Test Value: 2,692,641,537 (Within Confidence Interval)
State Upper Limit: 2,974,467,355 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,847,610,979 (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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