taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 3,613,020 0.8947 4,038,247 10 181 .051690508
A 4,111,350 1.1191 3,673,800 9 123 .070372086
A 3,979,220 1.0199 3,901,579 11 80 .040598320
A 4,064,800 1.1133 3,651,127 7 52 .095628774
E 6,050,490 0.7800 7,757,038 14 141 .242281651
G1 11,684,751 0.9945 11,749,373 12 48 .008954546
Random Totals: 33,503,631   34,771,164 63 625  
Catg J Exception Values: 2,118,220   1,992,649      
Catg D1 Exception Values: 6,875,350   7,131,121      
Catg G1 Exception Values: 5,906,850   5,792,217      
Total Test Values (4): 48,404,051   49,687,151      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 2,484,357

Confidence Interval Values (5)

State Lower Limit: 47,202,794 (State Test Value minus Margin of Error Percent)
Local Test Value: 48,404,051 (Within Confidence Interval)
State Upper Limit: 52,171,508 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 67,213,772 (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