2010 Confidence Interval Detail
091/Grayson
091-902/Collinsville ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 16,426,782 | 0.9547 | 17,206,224 | 17 | 289 | .018487823 |
| A | 16,533,374 | 0.9950 | 16,616,456 | 17 | 186 | .021667961 |
| A | 13,645,097 | 0.9472 | 14,405,719 | 17 | 115 | .011955113 |
| A | 14,845,890 | 0.9676 | 15,343,003 | 17 | 77 | .006459874 |
| D3 | 41,624,470 | 1.1349 | 36,676,773 | 20 | 1,184 | .099557621 |
| Random Totals: | 103,075,613 | 100,248,175 | 88 | 1,851 | ||
| Catg J Exception Values: | 3,559,310 | 3,482,857 | ||||
| Catg D1 Exception Values: | 3,669,963 | 2,852,085 | ||||
| Total Test Values (4): | 110,304,886 | 106,583,117 |
Margin of Error
| Margin of Error Percent: | 5.0658802 |
|---|---|
| Margin of Error Value: | 5,399,373 |
Confidence Interval Values (5)
| State Lower Limit: | 101,183,744 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 110,304,886 | (Within Confidence Interval) |
| State Upper Limit: | 111,982,490 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 122,676,804 | (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