1)Calculate the Sum of Squares total (SStot) 2) Calculate the Sum of Squares Between Groups (SSBG) 3) Calculate Sum of Squares Within Groups (SSWG) Please show work and not excel-Need help understanding and breaking it down

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.6: Summarizing Categorical Data
Problem 30PPS
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A high school principal wanted to know if there was a difference in absences for 9th grade, 10th grade, 11th grade, or 12th grade among students with less than a 2.0 GPA.  She took a random sample of n = 5 students from each grade and compared absences among the four grades using ANOVA.  The data are below:

 

9th grade 10th grade 11th grade 12th grade

6

9

6

7

7

10

12

11

11

14

17

8

11

14

15

15

16

12

12

12

 

1)Calculate the Sum of Squares total (SStot)

2) Calculate the Sum of Squares Between Groups (SSBG)

3) Calculate Sum of Squares Within Groups (SSWG)

Please show work and not excel-Need help understanding and breaking it down

 

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