taxes Property Tax Assistance

2017 Confidence Interval Detail

101/Harris
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 164,894,880 0.9666 170,592,675 46 1,548 .003592686
A 197,857,964 0.9795 201,998,942 45 1,061 .005487851
A 181,688,328 0.9792 185,547,721 35 631 .012559553
A 188,454,666 0.9779 192,713,637 20 389 .009688581
C1 45,934,735 0.8791 52,252,002 9 1,132 .002873888
C1 22,905,596 0.9152 25,027,968 10 197 .009320870
C1 23,613,915 0.8505 27,764,744 6 58 .052316683
C1 18,732,214 0.9746 19,220,412 5 9 .022675432
F1 34,466,081 0.9217 37,394,034 8 68 .011714610
F1 28,797,934 0.8391 34,320,026 6 24 .008532828
F1 38,970,693 0.9063 42,999,772 6 18 .011418566
F1 35,942,584 0.7471 48,109,469 5 8 .133684377
Random Totals: 982,259,590   1,037,941,402 201 5,143  
Catg D1 Exception Values: 5,641,684   5,917,662      
Catg F1 Exception Values: 86,500,155   86,866,509      
Total Test Values (4): 1,074,401,429   1,130,725,573      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 56,536,278

Confidence Interval Values (5)

State Lower Limit: 1,074,189,295 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,074,401,429 (Within Confidence Interval)
State Upper Limit: 1,187,261,851 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,483,490,370 (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