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2008 Confidence Interval Detail
043/Collin
043-905/Frisco ISD

Category Summary

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

Stratum
Variance
A 2,000,512,074 0.9845 2,032,008,201 74 11,522 .002039185
A 1,764,886,008 0.9845 1,792,672,431 74 7,710 .003954416
A 1,495,363,119 0.9901 1,510,315,240 74 4,905 .005583705
A 1,618,939,613 0.9696 1,669,698,446 73 2,284 .017023966
B 126,948,532 0.9859 128,764,106 17 354 .003372360
B 214,592,505 0.9825 218,414,763 4 11 .003098955
B 294,954,312 1.0057 293,282,601 4 10 .001797482
B 143,102,285 1.0405 137,532,230 2 3 .000949217
C 66,866,852 0.8975 74,503,456 9 499 .067264895
C 55,490,686 0.9913 55,977,692 7 78 .001894307
C 52,107,920 0.9353 55,712,520 6 42 .011916631
C 55,456,490 0.9722 57,042,265 5 26 .003867631
D3 345,068,264 1.1889 290,241,622 10 738 .111168648
F1 555,447,273 1.0455 531,274,293 7 268 .016775666
F1 668,905,971 0.9685 690,661,818 6 82 .000995253
F1 714,833,204 1.0191 701,435,781 6 33 .003416876
F1 686,769,773 1.0098 680,104,746 4 10 .003734820
L1 145,517,997 0.9019 161,346,044 7 798 .059711280
L1 156,760,393 0.9017 173,849,831 7 125 .066148119
L1 142,597,412 0.9365 152,266,324 5 27 .018176482
L1 176,845,727 1.0355 170,782,933 3 9 .003442982
Random Totals: 11,481,966,410   11,577,887,343 404 29,534  
Catg D1 Exception Values: 1,620,376   1,737,453      
Total Test Values (4): 11,483,586,786   11,579,624,796      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 578,981,240

Confidence Interval Values (5)

State Lower Limit: 11,000,643,556 (State Test Value minus Margin of Error Percent)
Local Test Value: 11,483,586,786 (Within Confidence Interval)
State Upper Limit: 12,158,606,036 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 11,133,737,616 (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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