Analyzing with ANOVA

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Assignment 2: Analyzing with ANOVA

Submit you answers to the following questions using the ANOVA source table below. the table depicts a two – way ANOVA in which gender has two groups (male and female) , marital status has three groups ( married, single never married, divorced). and the means refer to happiness scores (n=100):

a. what is / are the independent variable (s)? What is / are the dependent variable (s)?

b. what would be an appropriate null hypthesis? alternate hypothesis?

c. what are the degrees of freedom for 1) gender, 2) marital status, 3) interaction between gender and marital status, and 4) error or within variance.

d. calculate the mean square for 1) gender , 2) marital status, 3) interaction between gender and marital status, and 4) error or within variance.

e. calculate the F ratio for 1) gender, 2) marital status, 3) interaction between gender and marital status

f. identify the critical Fs at alpha= .05 for 1) gender, 2) marital status, and 3) interaction between gender and marital status.

g. if alpha is set at .05 what conclusions can you make?

Source                               Sum of Squares                    (Degrees of freedom [df])   Mean Square  Fobt. Fcrit.

Gender                                   68.15                                          ?                                      ?                  ?       ?

marital status                          127.37                                        ?                                       ?                 ?       ?

Gender*Marital Status (AxB)   41.90                                          ?                                     ?                  ?       ?

Error (Within)                            864.82                                        ?                                     ?                  NA      NA

Total                                           1102.24                                     99                                   NA                NA     NA

Please Note: the table that you see in the assignment has been slightly modified from the one presented in the module notes since it is beyond the scope of this unit to have students calculate p values. Instead you are asked to calculate the F valve and compare it to the critical F valve to determine whether the test is significant or not.

 

GRADING CRITERIA

correctly identified the independent and dependent variables

Provided appropriate null and alternative hypotheses.

correctly identified the degrees of freedom for 1) gender, 2) marital status, 3) interaction between gender and marital status, and 4) error or within variance.

Correctly calculated the mean square for 1) gener, 2) marital status, 3) interaction between gender and marital status.

Correctly identified the critical Fs at alpha=.05 for 1) gender, 2) marital status, and 3) interaction between gender and marital status

provided the correct conclusion based on alpha = .05

wrote a clear, concise, and oranized manner, demonstrated ethical scholarship in accurate representation and attribution of sources displayed accurate spelling, grammar, and punctuation

 

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