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
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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