A project (Aliaga et al., 2005)  was funded by the American Statistical Association to examine needs for college level statistics courses. One of the six recommendations from GAISE is the use of technology for developing conceptual understanding and analyzing data. A survey was sent to students at 100 different universities across the United States to access the relationship between ease of learning the statistical software program SAS and a student's currently level of SAS proficiency. The results of the survey are published in Jackson et al., 2011, in the International Mathematical Forum journal and are shown below.

Table 1.Two-way table for ease of learning SAS and SAS proficiency level.

Proficiency Ease	Not proficient	Somewhat proficient	Very proficient	Total
Difficult	11	15	2	28
Somewhat easy	8	33	11	52
Very easy	1	17	14	32
Total	20	65	27	112

Proficiency Ease	Not proficient	Somewhat proficient	Very proficient	Total
Difficult	A	D	G	J
Somewhat easy	B	E	H	K
Very easy	C	F	I	L
Total

What are the degrees of freedom for the test statistic used to test for a relationship between ease of learning SAS and SAS proficiency?

4

6

9

None of the above