2008 Confidence Interval Detail
212/Smith
212-909/Chapel Hill ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 136,919,190 | 1.0190 | 134,366,232 | 19 | 1,873 | .030993063 |
| A | 141,396,500 | 0.9595 | 147,364,773 | 33 | 953 | .004012328 |
| A | 146,933,280 | 0.9893 | 148,522,470 | 54 | 614 | .009383698 |
| A | 157,563,900 | 1.0249 | 153,735,877 | 24 | 334 | .005737939 |
| D3 | 111,121,040 | 0.9498 | 116,994,146 | 46 | 4,050 | .013758785 |
| F1 | 18,332,200 | 0.9396 | 19,510,643 | 7 | 125 | .006108373 |
| F1 | 18,928,560 | 0.9261 | 20,439,002 | 6 | 46 | .038383716 |
| F1 | 20,154,850 | 0.9899 | 20,360,491 | 5 | 22 | .001033234 |
| F1 | 15,973,300 | 0.9824 | 16,259,467 | 3 | 4 | .003940393 |
| G1 | 15,996,263 | 0.8137 | 19,658,674 | 6 | 52 | .033223474 |
| G1 | 16,348,333 | 0.6970 | 23,455,284 | 5 | 21 | .495889300 |
| G1 | 18,347,935 | 1.0180 | 18,023,512 | 4 | 8 | .007174309 |
| L1 | 16,559,304 | 0.9314 | 17,778,939 | 7 | 159 | .049672284 |
| L1 | 16,932,902 | 1.0000 | 16,932,902 | 9 | 35 | .005165710 |
| L1 | 17,154,264 | 0.9233 | 18,579,296 | 4 | 10 | .035154242 |
| L1 | 14,976,384 | 1.0277 | 14,572,720 | 3 | 5 | .000515954 |
| Random Totals: | 883,638,205 | 906,554,428 | 235 | 8,311 | ||
| Catg D1 Exception Values: | 12,897,107 | 8,985,276 | ||||
| Catg G1 Exception Values: | 12,922,255 | 13,012,725 | ||||
| Total Test Values (4): | 909,457,567 | 928,552,429 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 46,427,621 |
Confidence Interval Values (5)
| State Lower Limit: | 882,124,808 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 909,457,567 | (Within Confidence Interval) |
| State Upper Limit: | 974,980,050 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 1,039,881,749 | (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