Holiday Hours
Quick Start for:

2008 Confidence Interval Detail
227/Travis
227-904/Pflugerville ISD

Category Summary

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

Stratum
Variance
A 838,264,116 0.9417 890,160,471 70 6,955 .004239481
A 1,040,415,713 0.9712 1,071,268,238 70 7,203 .006502818
A 1,245,538,050 0.9854 1,263,992,338 70 7,196 .004105396
A 1,392,396,661 0.9920 1,403,625,666 65 6,085 .004720043
B 124,538,051 0.9837 126,601,658 13 270 .003556135
B 69,346,643 0.9198 75,393,176 4 6 .003627814
B 127,918,483 0.9497 134,693,570 4 6 .001024034
F1 349,051,759 1.0488 332,810,602 8 418 .018101150
F1 345,869,278 1.0063 343,703,943 6 94 .001254227
F1 286,242,991 0.9622 297,488,039 5 23 .003073761
F1 339,095,462 1.0127 334,842,956 5 13 .003022521
L1 230,766,663 0.9725 237,292,198 7 516 .000926951
L1 229,405,178 1.0107 226,976,529 6 68 .000021418
L1 220,181,507 0.9510 231,526,295 4 13 .012833701
Random Totals: 6,839,030,555   6,970,375,679 337 28,866  
Catg D1 Exception Values: 4,730,779   3,777,335      
Catg B Exception Values: 121,375,902   121,150,000      
Catg L1 Exception Values: 265,136,539   265,125,275      
Total Test Values (4): 7,230,273,775   7,360,428,289      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 368,021,414

Confidence Interval Values (5)

State Lower Limit: 6,992,406,875 (State Test Value minus Margin of Error Percent)
Local Test Value: 7,230,273,775 (Within Confidence Interval)
State Upper Limit: 7,728,449,703 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 7,227,390,259 (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

Required Plug-ins