Question

The dot plots show the time 19 math students students spent on their test in Class A and 19 math students spent on their test in Class B. Answer True or False for each of the statements about the data.

(3 points)

Answer 1

I don’t see the dot plots or the statements to judge. Could you either upload the dot-plot images or paste the 19 times for Class A and the 19 times for Class B and the list of True/False statements?

While you get that, here are quick instructions so you (or I) can answer each statement correctly once I have the data:

- There are 19 students in each class (odd). Order each class’s 19 times from smallest to largest.
- Median = the 10th value (middle value).
- Q1 = median of the lower 9 values → the 5th value.
- Q3 = median of the upper 9 values → the 15th value.
- IQR = Q3 − Q1.
- Range = max − min.
- Mean = (sum of the 19 times) / 19.
- To decide True/False for statements about:
- “Class X has a larger median/mean” → compare the medians/means you computed.
- “Class X is more spread out” → compare IQRs (for typical spread) and ranges (for extreme spread).
- “There are outliers in Class X” → check any points that are more than 1.5·IQR below Q1 or above Q3.
- “Class X is skewed left/right” → look for a longer tail on one side in the dot plot.
- “Modes / most common times” → look for the highest stack(s) of dots.

If you paste the dot-plot values or the statements, I’ll compute the numbers and answer True/False for each.