1. 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 olve a dificalt trssful the The data 10 17 15 9. 12 8. 16 11 11 12 7 11 14 12 7 14 15 12 A) Calculate the degrees of freedom Between Groups (dfBG) B) Calculate the degrees of freedom Within Group (dfwG) C) Calculate the Sum of Squares total (SStot) 6
1. 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 olve a dificalt trssful the The data 10 17 15 9. 12 8. 16 11 11 12 7 11 14 12 7 14 15 12 A) Calculate the degrees of freedom Between Groups (dfBG) B) Calculate the degrees of freedom Within Group (dfwG) C) Calculate the Sum of Squares total (SStot) 6
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
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:

Transcribed Image Text:1. 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 11 th grade 12th grade
vee ditiont
ssfol the
The data
10
17
15
9.
12
8.
16
6.
11
11
12
7
11
14
12
7
14
15
12
A) Calculate the degrees of freedom Between Groups (dfBG)
B) Calculate the degrees of freedom Within Group (dfwG)
C) Calculate the Sum of Squares total (SStot)
D) Calculate the Sum of Squares Between Groups (SSBG)
E) Calculate Sum of Squares Within Groups (SSWG)
F) Calculate Mean Square Between Group (MSBG)
G) Calculate Mean Square Within Group (MSWG)
H) Calculate the F statistic
I) Using the table in the back of the book, find the critical value for F (Ferit) with a = .01
J) Calculate the Tukey HSD using a = .01. Which are the appropriate statistical
conclusions?
6
Expert Solution

This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps with 2 images

Follow-up Questions
Read through expert solutions to related follow-up questions below.
Recommended textbooks for you

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc

Probability and Statistics for Engineering and th…
Statistics
ISBN:
9781305251809
Author:
Jay L. Devore
Publisher:
Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…
Statistics
ISBN:
9781305504912
Author:
Frederick J Gravetter, Larry B. Wallnau
Publisher:
Cengage Learning

Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON

The Basic Practice of Statistics
Statistics
ISBN:
9781319042578
Author:
David S. Moore, William I. Notz, Michael A. Fligner
Publisher:
W. H. Freeman

Introduction to the Practice of Statistics
Statistics
ISBN:
9781319013387
Author:
David S. Moore, George P. McCabe, Bruce A. Craig
Publisher:
W. H. Freeman