taxes Property Tax

School and Appraisal Districts Property Value Study 2014 Report

2014 Confidence Interval Detail
091/Grayson
091-906/Sherman ISD

Category Summary

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

Stratum
Variance
A 242,035,621 0.9128 265,157,341 30 4,492 .025698007
A 224,366,091 0.8759 256,154,916 27 2,353 .011562283
A 245,072,060 0.9282 264,029,369 25 1,763 .008399299
A 250,714,184 0.9424 266,037,971 18 980 .012281698
B 33,315,628 0.9325 35,727,215 13 222 .020426666
B 35,699,756 0.8140 43,857,194 8 15 .012607692
B 41,090,787 0.9651 42,576,714 6 8 .003022592
F1 145,852,200 0.9326 156,393,095 14 482 .038037075
F1 150,711,897 0.9403 160,280,652 14 106 .017093972
F1 122,070,693 0.9584 127,369,254 13 28 .016788696
F1 157,935,573 0.9955 158,649,496 8 11 .007017828
L1 52,605,469 1.0450 50,340,162 10 602 .008236028
L1 61,619,020 1.0086 61,093,615 9 118 .009583636
L1 54,141,296 1.0624 50,961,310 8 26 .002869819
L1 45,786,346 1.0305 44,431,195 4 6 .001225511
Random Totals: 1,863,016,621   1,983,059,499 207 11,212  
Catg D1 Exception Values: 2,561,457   2,122,871      
Catg B Exception Values: 25,308,063   26,806,000      
Total Test Values (4): 1,890,886,141   2,011,988,370      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 100,599,419

Confidence Interval Values (5)

Local Test Value: 1,890,886,141 (Outside Confidence Interval)
State Lower Limit: 1,911,388,951 (State Test Value minus Margin of Error Percent)
State Upper Limit: 2,112,587,789 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 2,622,939,385 (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