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2008 Confidence Interval Detail
219/Swisher
219-901/Happy ISD

Category Summary

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

Stratum
Variance
A 1,927,030 0.8292 2,323,963 8 97 .048246650
A 2,088,220 0.9206 2,268,325 8 52 .018279215
A 1,668,890 0.9478 1,760,804 7 27 .025776367
A 3,424,730 1.0621 3,224,489 7 34 .008222179
D3 4,652,020 0.9468 4,913,414 22 701 .020805460
Random Totals: 13,760,890   14,490,995 52 911  
Catg J Exception Values: 4,953,384   4,851,970      
Catg D1 Exception Values: 10,641,691   10,915,501      
Total Test Values (4): 29,355,965   30,258,466      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,512,923

Confidence Interval Values (5)

State Lower Limit: 28,745,543 (State Test Value minus Margin of Error Percent)
Local Test Value: 29,355,965 (Within Confidence Interval)
State Upper Limit: 31,771,389 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 37,103,511 (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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