2007 Confidence Interval Detail
043/Collin
043-910/Plano ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 4,918,554,769 | 1.0084 | 4,877,583,071 | 99 | 29,451 | .001403845 |
| A | 4,918,594,459 | 1.0010 | 4,913,680,778 | 100 | 21,203 | .001566733 |
| A | 4,918,703,902 | 0.9993 | 4,922,149,407 | 100 | 15,005 | .000863129 |
| A | 4,918,177,845 | 0.9939 | 4,948,362,858 | 100 | 7,492 | .001135557 |
| B | 628,201,778 | 0.7829 | 802,403,599 | 6 | 197 | .046487128 |
| B | 618,877,370 | 0.7786 | 794,859,196 | 6 | 40 | .019676032 |
| B | 621,421,402 | 0.7166 | 867,180,299 | 6 | 29 | .019052624 |
| B | 608,453,277 | 0.7832 | 776,881,099 | 5 | 19 | .009556525 |
| D3 | 260,635,544 | 0.8092 | 322,090,391 | 14 | 924 | .167721181 |
| F1 | 1,657,223,394 | 0.9614 | 1,723,760,551 | 5 | 856 | .028456186 |
| F1 | 1,660,735,147 | 0.9488 | 1,750,353,233 | 6 | 213 | .001328240 |
| F1 | 3,296,439,376 | 0.8991 | 3,666,376,795 | 10 | 98 | .010077033 |
| L1 | 519,731,283 | 0.9799 | 530,392,166 | 9 | 2,489 | .003402105 |
| L1 | 522,092,813 | 0.9939 | 525,297,125 | 11 | 276 | .002967676 |
| L1 | 527,688,890 | 0.9963 | 529,648,590 | 7 | 62 | .001867646 |
| L1 | 508,971,877 | 1.0063 | 505,785,429 | 6 | 16 | .005235751 |
| Random Totals: | 31,104,503,126 | 32,456,804,587 | 490 | 78,370 | ||
| Catg D1 Exception Values: | 1,739,941 | 1,705,268 | ||||
| Total Test Values (4): | 31,106,243,067 | 32,458,509,855 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 1,622,925,493 |
Confidence Interval Values (5)
| State Lower Limit: | 30,835,584,362 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 31,106,243,067 | (Within Confidence Interval) |
| State Upper Limit: | 34,081,435,348 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 32,145,126,921 | (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