study surveys students to determine the amount of Facebook use during the time they are doing Math homework. Students are classified into three groups: Non- User, Rarely-Use, Regularly-Use, and their Math scores are recorded. The following data summarize the results. Facebook Use While Doing Homework Non-User Rarely-Use Regularly-Use n = 6 n = 8 n = 10 N = 24 M = 6 M = 2 M = 2 G = 72 SS = 30 SS = 33 SS = 42 ΣX2tot = 393 Use an ANOVA with α = .05 to determine whether there are significant differences among the means of the three groups. The alternative hypothesis is: The Critical F-value is: Note: Leave the two decimal places after the decimal point The F-statistic is: Note: leave all the decimal places after the decimal point and do not round. Your decision is

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Questions 9 to 12 are based on the following problem:

A study surveys students to determine the amount of Facebook use during the time they are doing Math homework. Students are classified into three groups: Non- User, Rarely-Use, Regularly-Use, and their Math scores are recorded. The following data summarize the results.

Facebook Use While Doing Homework

Non-User

Rarely-Use

Regularly-Use

 

 

n = 6

n = 8

n = 10

N = 24

 

M = 6

M = 2

M = 2

G = 72

 

SS = 30

SS = 33

SS = 42

ΣX2tot = 393

 

Use an ANOVA with α = .05 to determine whether there are significant differences among the means of the three groups.

The alternative hypothesis is:

 

The Critical F-value is:

Note: Leave the two decimal places after the decimal point

 

The F-statistic is:

Note:  leave all the decimal places after the decimal point and do not round.

Your decision is

        

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