taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
246/Williamson
246-907/Jarrell ISD

Category Summary

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

Stratum
Variance
A 105,347,912 0.9823 107,246,169 68 900 .009070859
A 171,239,354 0.9982 171,548,141 55 1,010 .002903533
A 181,835,357 0.9958 182,602,287 37 788 .005835877
A 218,220,416 0.9911 220,180,018 25 613 .008753548
E 58,522,999 1.0240 57,151,366 17 547 .074502608
F1 11,893,031 1.0187 11,674,714 9 56 .058778981
F1 16,579,103 1.1076 14,968,493 7 31 .097328862
F1 9,284,613 1.1453 8,106,708 5 9 .008385098
F1 20,953,454 0.9869 21,231,588 3 9 .050263712
Random Totals: 793,876,239   794,709,484 226 3,963  
Catg D1 Exception Values: 5,261,849   4,778,717      
Total Test Values (4): 799,138,088   799,488,201      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 39,974,410

Confidence Interval Values (5)

State Lower Limit: 759,513,791 (State Test Value minus Margin of Error Percent)
Local Test Value: 799,138,088 (Within Confidence Interval)
State Upper Limit: 839,462,611 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 774,953,643 (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