taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
138/Knox
138-902/Knox City-O'Brien CISD

Category Summary

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

Stratum
Variance
A 3,533,630 0.8539 4,138,225 12 204 .028350444
A 3,309,610 0.8547 3,872,248 9 116 .057757461
A 3,487,210 0.8842 3,943,915 12 79 .082321360
A 3,822,450 0.8537 4,477,510 9 53 .049969890
G1 6,036,660 0.9788 6,167,409 5 10 .017590729
L1 2,025,850 0.9636 2,102,377 10 74 .001691312
L1 2,224,350 1.0088 2,204,946 7 19 .006308627
L1 2,314,050 1.0436 2,217,373 6 8 .009456884
L1 2,038,710 0.9625 2,118,140 3 4 .012544754
Random Totals: 28,792,520   31,242,143 73 567  
Catg J Exception Values: 1,210,770   1,403,040      
Catg D1 Exception Values: 6,823,880   6,191,471      
Catg G1 Exception Values: 21,674,915   21,393,854      
Total Test Values (4): 58,502,085   60,230,508      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 3,011,525

Confidence Interval Values (5)

State Lower Limit: 57,218,983 (State Test Value minus Margin of Error Percent)
Local Test Value: 58,502,085 (Within Confidence Interval)
State Upper Limit: 63,242,033 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 70,211,702 (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