Question

part 2: comparing groups
return to the mathematics test data that we examined in part 1 of this assignment. it turns out that some of the students who completed the mathematics test had taken a test preparation course in order to learn strategies that might help them do well on the test. lets compare the test scores for students who completed a test preparation course against the test scores for students who did not complete such a course. this data is summarized in the graphical display and table of statistics shown below. use this information to answer questions 13 through 18.

1. based on your examination of the above boxplots and table of summary statistics, does it appear the test preparation course was helpful to students? please explain.

Explanation:

The mean score for students who took the test - preparation course (68.6) is higher than the mean score for students who did not (64.7). Also, the median score for students who took the course (69) is higher than that for non - course students (65). The first quartile (Q1) and third quartile (Q3) for course - taking students are also higher than those for non - course students. This indicates that, on average and across different parts of the score distribution, students who took the test preparation course performed better.

Answer:

Yes, it appears the test preparation course was helpful to students.