This model was also considered to investigate if Surfers level of Satisfaction is different than non Surfers':

.

r² was computed and Ho: R²=0 was tested with a p-value=0.10.

The F test statistic value is 

This first model was considered to investigate if Satisfaction is Happiness dependent:

.

The coefficient of correlation between Satisfaction and Happiness was computed and found to be 0.411.

Regarding Ho: R²=0, the F test statistic is 

The expected frequency (if Ho is true) of Female Surfers is 

Modify the observed frequency table considering only

- 2 non surfers (1 non female and 1 female) and

- only 1 surfer, a female.

so a total of 3 students.

What would your conclusions be, with α=0.05 ?

The same Contingency Analysis was run considering only the students with a GPA >2 (so a smaller sample).

A smaller sample was considered and we ran this

Based on the information given above, with α=0.05, what would your main conclusion be ?

The original sample (described in the beginning of the Exam)  was split among the Female categories and these descriptives computed:

and an ANOVA was run to find out if Satisfaction is Gender dependent.

Ho is

Consider the previous ANOVA (Question 9), that was run with factors Female and Surfer.

A new factor, with a sum of squares equal to 40 and 4 different categories, was added.

What is the F test statistic value for Female ?

The previous ANOVA (described in Question 7) was re run using both factors: Female and Surfer.

How many degrees of freedom were assigned to the Residuals sum of squares ?