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2010 Confidence Interval Detail
020/Brazoria
020-908/Pearland ISD

Category Summary

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

Stratum
Variance
A 1,192,235,517 0.9524 1,251,822,256 47 8,828 .003045056
A 1,109,441,424 0.9630 1,152,067,938 42 6,557 .003978632
A 1,038,391,748 0.9851 1,054,097,805 36 5,034 .006158159
A 1,059,728,364 0.9914 1,068,921,085 17 3,580 .005736610
F1 140,835,668 1.0036 140,330,478 11 394 .055989749
F1 148,422,298 1.0779 137,695,796 9 137 .011230331
F1 153,219,924 0.9791 156,490,577 9 61 .012895672
F1 125,231,639 0.8982 139,425,116 7 18 .019292363
Random Totals: 4,967,506,582   5,100,851,051 178 24,609  
Catg J Exception Values: 46,303,000   48,668,911      
Catg D1 Exception Values: 265,350   268,179      
Total Test Values (4): 5,014,074,932   5,149,788,141      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 257,489,407

Confidence Interval Values (5)

State Lower Limit: 4,892,298,734 (State Test Value minus Margin of Error Percent)
Local Test Value: 5,014,074,932 (Within Confidence Interval)
State Upper Limit: 5,407,277,548 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 5,436,916,414 (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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