A professor wants to determine whether her department should keep the requirement of college algebra as a prerequisite for an Introductory Statistics course. Accordingly, she allows some students to register for the course on a pass-fail basis regardless of whether or not they have had the prerequisite. Of the 70 students in the class, 40 have had algebra and 30 have not. At the end of the semester, the professor compares the number of students passing or failing the class with whether or not they had algebra. The results are presented blow. The professor is interested in the answer to the following question: Are students more likely to pass the course if they have taken college algebra?

Calculate the relevant statistic and report your results below. Use the numbered list as a guide and be sure to record your work as you go.

	Pass	Fail	Total
Algebra	34	6
No Algebra	12	18
Total			70 (N)

1. Calculate expected frequencies for all cells
2. Calculate chi square
3. Find critical value (using alpha = .05)
4. Compare chi square and critical value and make a decision re: significance
5. Explain what your decision means in terms of the original research question. Include relevant percentages