2007 Confidence Interval Detail
252/Young
252-901/Graham ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 58,814,848 | 0.9594 | 61,303,782 | 36 | 1,492 | .045390407 |
| A | 58,734,386 | 0.9672 | 60,726,206 | 34 | 793 | .005437796 |
| A | 58,733,876 | 0.9548 | 61,514,323 | 15 | 510 | .011669786 |
| A | 58,700,141 | 0.9665 | 60,734,755 | 20 | 279 | .011112234 |
| D3 | 59,464,630 | 0.9044 | 65,750,365 | 35 | 5,055 | .265701329 |
| F1 | 15,236,812 | 1.0094 | 15,094,920 | 14 | 186 | .034433462 |
| F1 | 16,100,382 | 0.9689 | 16,617,176 | 16 | 54 | .003109016 |
| F1 | 17,217,867 | 1.0070 | 17,098,180 | 7 | 8 | .003815205 |
| G1 | 25,191,140 | 0.9789 | 25,734,130 | 7 | 303 | .026857365 |
| G1 | 25,216,520 | 0.9934 | 25,384,055 | 7 | 94 | .005426553 |
| G1 | 26,078,030 | 1.0114 | 25,784,091 | 6 | 28 | .010488603 |
| L1 | 8,035,352 | 0.8673 | 9,264,790 | 7 | 199 | .131781002 |
| L1 | 8,039,353 | 0.9818 | 8,188,382 | 6 | 50 | .000337298 |
| L1 | 8,036,004 | 0.9801 | 8,199,167 | 5 | 19 | .000014171 |
| L1 | 8,012,180 | 0.9811 | 8,166,527 | 2 | 3 | .000390550 |
| Random Totals: | 451,611,521 | 469,560,849 | 217 | 9,073 | ||
| Catg J Exception Values: | 27,799,603 | 28,069,684 | ||||
| Catg D1 Exception Values: | 23,846,010 | 16,852,384 | ||||
| Catg F1 Exception Values: | 8,465,970 | 8,513,177 | ||||
| Total Test Values (4): | 511,723,104 | 522,996,094 |
Margin of Error
| Margin of Error Percent: | 5.0000001 |
|---|---|
| Margin of Error Value: | 26,149,805 |
Confidence Interval Values (5)
| State Lower Limit: | 496,846,289 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 511,723,104 | (Within Confidence Interval) |
| State Upper Limit: | 549,145,899 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 577,294,098 | (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