Question: Extracurricular activities and grades. North Carolina State University studied student performance in a course required by its chemical engineering major. One question of interest was the relationship between time spent in extracurricular activities and whether a student earned a C or better in the course. Here are the data for the 119 students who answered a question about extracurricular activities:
Extracurricular Activities
(hours per week)
Less than 2 2 to 12 More than 12
C or better 11 68 3
D or F 9 23 5
Calculate percentages that describe the nature of the relationship between time spent on extracurricular activities and performance in the course. Give a brief summary in words.