Because statistical software plays such an important role in modern statistical applications,many studies have encouraged the use of technology in statistics courses.The Guidelines for the Assessment and Instruction in Statistics Education (GAISE) (Aliaga et al. ,2005) project 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. What is the expected cell count for students who find SAS somewhat easy to learn and who are not proficient?

A) 20
B) 8
C) 9.3
D) None of the above

Question

Because statistical software plays such an important role in modern statistical applications,many studies have encouraged the use of technology in statistics courses.The Guidelines for the Assessment and Instruction in Statistics Education (GAISE) (Aliaga et al. ,2005) project 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.

What is the expected cell count for students who find SAS somewhat easy to learn and who are not proficient?

A) 20
B) 8
C) 9.3
D) None of the above

Barry moussadjouldé · Accepted Answer

Final Answer : C, Explanation :  The expected cell count can be calculated by multiplying the row total and column total and then dividing by the total number of observations. For the cell corresponding to students who find SAS somewhat easy to learn and who are not proficient, the row total is 48 and the column total is 29, so the expected cell count is (48 x 29) / 200 = 6.96 or approximately 9.3. Therefore, the best choice is C.

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