Final answer:
Researchers are studying two different designs of computer keyboards, j and k, to investigate the effectiveness of the design on the speed of data entry.
Step-by-step explanation:
The subject of this question is Mathematics and the grade level is High School. Researchers are studying two different designs of computer keyboards, j and k, to investigate the effectiveness of the design on the speed of data entry. They randomly assigned 5 people to keyboard j and 6 people to keyboard k and recorded the number of seconds each person took to enter the data.
The dotplots provided show the observed entry times for the two keyboards, and the researchers believe that keyboard j may result in faster entry times compared to keyboard k.