The following dot plots show the amount of time it takes each person, in a random sample, to complete two similar problems. What is the mean time for each problem? Make a comparative inference based on the mean values.
Problem 1
Problem 2
23 24 25 26 27 28 29 30 31 32 33 34 35
Time (Minutes)
23 24 25 26 27 28 29 30 31 32 33 34 35
Time (Minutes)
2
The mean time for Problem 1 is
minutes.
The mean time for Problem 2 is
minutes
Which of the following is a correct inference based on the mean values?
O A. Problem 1 is more challenging than Problem 2.
OB. Problem 2 is more challenging than Problem 1.
O C. The problems are equally challenging.