Question

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 students who took the test - preparation course have a higher mean (68.6 vs 64.7), median (69 vs 65), and higher values for Q1 (59 vs 54), Q3 (80 vs 74), and maximum (100 vs 99) compared to those who did not take the course. This indicates that, on average, the test - preparation course was helpful.

Answer:

Yes, it appears the test preparation course was helpful to students because students who took the course had higher mean, median, and quartile values in their mathematics test scores compared to those who did not take the course.