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2007 Confidence Interval Detail
178/Nueces
178-905/Driscoll ISD

Category Summary

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

Stratum
Variance
A 3,990,537 0.9910 4,026,778 8 164 .010495517
A 3,966,914 0.9643 4,113,776 7 101 .005163798
A 4,009,425 0.9604 4,174,745 7 65 .015172618
A 3,875,090 1.0075 3,846,243 7 34 .003798453
D3 1,691,987 1.0040 1,685,246 13 298 .003550363
G1 11,393,516 1.0529 10,821,081 15 65 .037244760
G1 11,030,643 1.0181 10,834,538 14 23 .024217427
G1 11,586,950 1.0208 11,350,852 10 13 .010803465
G1 10,667,123 1.1491 9,283,024 6 7 .017268595
Random Totals: 62,212,185   60,136,283 87 770  
Catg J Exception Values: 4,783,659   4,532,435      
Catg D1 Exception Values: 9,549,457   9,813,425      
Total Test Values (4): 76,545,301   74,482,143      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,724,107

Confidence Interval Values (5)

State Lower Limit: 70,758,036 (State Test Value minus Margin of Error Percent)
Local Test Value: 76,545,301 (Within Confidence Interval)
State Upper Limit: 78,206,250 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 118,223,476 (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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