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
6	1274	2500	-	2552	=	-52	*	(122	/	486)	=	-13.05349791
7	1275	2506	-	2567	=	-61	*	(124	/	486)	=	-15.56378595
8	1276	2516	-	2586	=	-70	*	(123	/	486)	=	-17.71604933
11	1277	2584	-	2628	=	-44	*	(117	/	486)	=	-10.59259256
Step 4	SUM Weighted Distance From Standard to get 2019 Difference From Standard for Impact Academy of Arts & Technology											-57

Last steps

Compute the average

2019	Sum	Average
-57	-57.0	-57.0

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:

	2019
Percent	64%
Data source	2019 data file