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2006 Confidence Interval Detail
221/Taylor
221-912/Wylie ISD

Category Summary

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

Stratum
Variance
A 144,231,137 0.9614 150,021,986 17 1,525 .001775687
A 144,249,091 0.9879 146,015,883 8 960 .000454718
A 144,272,701 0.9753 147,926,485 29 709 .000863584
A 143,922,879 0.9912 145,200,645 8 412 .000696198
D3 125,168,704 0.9942 125,898,918 26 2,910 .007595248
F1 14,757,579 0.9617 15,345,304 6 62 .023398024
F1 14,703,144 0.9862 14,908,887 5 18 .000717493
F1 16,155,262 0.9499 17,007,329 5 6 .003758317
L1 7,083,135 0.9912 7,146,020 11 102 .002803530
L1 7,566,556 1.0403 7,273,437 5 23 .005524320
L1 13,662,449 1.0223 13,364,422 3 6 .008601707
Random Totals: 775,772,637   790,109,316 123 6,733  
Catg D1 Exception Values: 5,887,305   5,368,196      
Catg F1 Exception Values: 47,438,890   50,433,531      
Catg L1 Exception Values: 10,349,779   12,525,391      
Total Test Values (4): 839,448,611   858,436,434      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 42,921,822

Confidence Interval Values (5)

State Lower Limit: 815,514,612 (State Test Value minus Margin of Error Percent)
Local Test Value: 839,448,611 (Within Confidence Interval)
State Upper Limit: 901,358,256 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 881,341,047 (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

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