taxes Property Tax Assistance

2018 Confidence Interval Detail

237/Waller
237-904/Waller ISD

Category Summary

(1)
Category		 (1)
Local
Value		 (1)
Stratum
Ratio		 (1)
State
Value		 (2)
Sample
Size		 (3)
Total
Parcels
Stratum
Variance
A 157,719,061 0.7510 210,012,065 45 1,841 .063041286
A 161,100,639 0.8539 188,664,526 42 1,009 .022780092
A 177,021,902 0.8849 200,047,352 29 768 .016917306
A 212,041,751 0.9626 220,280,232 19 517 .012528871
E 536,748,078 0.9163 585,777,669 46 2,734 .059241200
F1 33,345,815 0.9487 35,148,956 16 160 .102620983
F1 31,005,533 0.8752 35,426,797 8 40 .014431416
F1 37,344,870 0.8684 43,004,226 5 14 .008822966
L1 26,178,110 0.9245 28,315,965 10 130 .141081367
L1 23,248,810 0.8968 25,924,186 8 23 .058759080
L1 26,018,900 0.9033 28,804,273 6 9 .113860450
Random Totals: 1,421,773,469   1,601,406,247 234 7,245  
Catg D1 Exception Values: 14,119,079   12,034,349      
Catg F1 Exception Values: 28,250,700   28,265,274      
Catg L1 Exception Values: 26,870,220   26,734,976      
Total Test Values (4): 1,491,013,468   1,668,440,846      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 83,422,042

Confidence Interval Values (5)

Local Test Value: 1,491,013,468 (Outside Confidence Interval)
State Lower Limit: 1,585,018,804 (State Test Value minus Margin of Error Percent)
State Upper Limit: 1,751,862,888 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,652,693,243 (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, D2, E, 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