In Exercise 1.59, we analyzed the percentage of aluminum oxide in 26 samples of Romano-British pottery found at four different kiln sites in the United Kingdom.13 Since one of the sites only provided two measurements, that site is eliminated, and comparative box plots of aluminum oxide at the other three sites are shown.

a. What two variables have been measured in this experiment? Are they qualitative or quantitative?
b. How would you compare the amount of aluminum oxide in the samples at the three sites?

Transcribed Image Text:

A- 10 12 14 16 Aluminum Oxide 18 20