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2009 Confidence Interval Detail
070/Ellis
070-903/Ennis ISD

Category Summary

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

Stratum
Variance
A 143,228,401 0.9829 145,720,217 14 2,384 .007318427
A 140,706,186 1.0201 137,933,718 24 1,414 .010059912
A 139,278,618 0.9994 139,362,235 24 964 .003334982
A 136,963,735 0.9992 137,073,394 15 567 .004339319
D3 149,459,084 1.0037 148,908,124 17 4,351 .074024671
F1 42,252,671 0.9863 42,839,573 7 240 .011005310
F1 47,297,472 0.9685 48,835,800 7 84 .001760336
F1 47,734,321 0.9808 48,668,761 6 25 .009305392
F1 37,961,620 1.0250 37,035,727 3 5 .004849011
L1 20,456,929 1.0885 18,793,688 9 274 .012121520
L1 17,244,120 0.9931 17,363,931 7 60 .005595502
L1 25,706,250 0.9060 28,373,344 6 25 .012581404
L1 19,793,490 0.9344 21,183,101 3 5 .001423518
Random Totals: 968,082,897   972,091,613 142 10,398  
Catg J Exception Values: 55,760,676   55,639,855      
Catg D1 Exception Values: 16,024,175   13,298,437      
Total Test Values (4): 1,039,867,748   1,041,029,905      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 52,051,495

Confidence Interval Values (5)

State Lower Limit: 988,978,410 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,039,867,748 (Within Confidence Interval)
State Upper Limit: 1,093,081,400 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,686,936,003 (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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