2019
| Step 1 |
|
Step 2 |
|
Step 3 |
|
Get Mean Scale Score from line numbers in this
data file.
|
|
Subtract 'met min'
Scale Score.
from Mean Scale Score to get
Distance From Standard
|
|
Multiply Distance From Standard by
proportion of students in grade.
|
| Grade |
Line
number |
Mean
Scale
Score |
- |
Scale
Score:
met min |
= |
Distance
from
standard |
* |
(Students
tested
in grade |
/ |
Students)
tested
in
school |
= |
Weighted
Distance
From
Standard |
| 7 |
65927 |
0 |
- |
2567 |
= |
|
* |
(6 |
/ |
59)
|
= |
|
| 8 |
65928 |
2412 |
- |
2586 |
= |
-174 |
* |
(13 |
/ |
59)
|
= |
-38.33898304 |
| 11 |
65929 |
2420 |
- |
2628 |
= |
-208 |
* |
(40 |
/ |
59)
|
= |
-141.01694901 |
| Step 4 |
SUM Weighted Distance From Standard to get
2019 Difference From Standard for Goodwill Independent Study
|
-179 |
Last steps
Compute the average
| 2019 |
Sum |
Average |
|
-179
|
-179.0 |
-179.0 |
Compute the Upper Control Limit
Simply compute the standard deviation and multiply by 3 and add to the average:
Compute the Lower Control Limit
Simply compute the standard deviation and multiply by 3 and subtract from the average:
For the lines, you have the data necessary to plot the chart.
Very last step
The percent of students getting a Free or Reduced Price Meal comes from the following sources: