A sample of 24 students was classified as to whether they generally did or did not attend class. At the end of the semester, each student either passed or failed; of the 16 who passed, 14 were attenders, while only 3 attenders failed. Is attendance related to failure? a) identify the independent variable (0.5 marks) b) identify the dependent variable (0.5 marks) c) state the null hypothesis being tested (1 mark) d) complete the analysis at 0.05 confidence level and interpret the result (1 mark)