Time Spent & Exam Comparison

This report compares the time spent on one homework across three classes (SP22, FA24, and SP26) and the exam scores across two classes (FA24, and SP26). The analysis includes both violin plots and box plots together with summary statistics for each variable.

From the visualizations and summary statistics, we can observe the following:

  1. Total Time Spent: The SP22 class has a much higher mean and median time spent compared to FA24 and SP26, with a significant number of outliers in the FA24 and SP26 groups. This suggests that students in SP22 may have spent more time on the homework, while those in FA24 and SP26 have spent less time.

  2. In-question Time Spent: The SP22 class also shows a higher mean and median time spent on in-question activities compared to FA24 and SP26. The SP22 class has a larger standard deviation and a wider interquartile range, indicating more variability in the time spent on in-question activities among students in that class.

  3. Exam1 Scores: The FA24 class has a higher mean and median exam score compared to SP26, with a smaller standard deviation, suggesting more consistent performance. The SP26 class has a wider range of scores, indicating more variability in student performance on the exam.

  4. A possible factor contributing to the differences in time spent and exam scores could be the usage of AI. Further investigation into these factors may provide insights into the observed differences.

Total

Violin + Box

Total — violin

Summary statistics

Group n Mean Median Std Min Q1 Q3 IQR Max Outliers
SP22 11 31660.27 13515.00 39711.27 21.00 480.50 56803.00 56322.50 123779.00 0
FA24 16 21050.25 1430.00 35950.35 31.00 67.75 23030.75 22963.00 106772.00 2
SP26 17 499.00 93.00 758.33 8.00 46.00 404.00 358.00 1928.00 4

In-question

Violin + Box

In-question — violin

Summary statistics

Group n Mean Median Std Min Q1 Q3 IQR Max Outliers
SP22 11 92.33 92.00 49.79 17.20 53.85 137.35 83.50 159.40 0
FA24 14 51.21 45.85 21.53 30.70 36.75 56.60 19.85 106.00 1
SP26 17 62.28 52.40 39.20 7.70 35.60 91.20 55.60 159.20 0

Exam1

Violin + Box

Exam1 — violin

Summary statistics

Group n Mean Median Std Min Q1 Q3 IQR Max Outliers
FA24 15 55.67 51.00 22.00 26.00 35.50 73.50 38.00 92.00 0
SP26 17 36.06 26.00 29.06 5.00 10.00 54.00 44.00 98.00 0