Mean time for Group A:
(18 + 20 + 46 + 34 + 58 + 31 + 41) / 7 = 34
Mean time for Group B:
(15 + 21 + 32 + 42 + 29 + 57 + 39) / 7 = 33
Difference in mean times:
34 - 33 = 1
Therefore, the difference in mean times spent shopping between Group A and Group B is 1 minute.
Use the table to answer the question.
Group A 18 20 46 34 58 31 41
Group B 15 21 32 42 29 57 39
The table shows the times, in minutes, spent shopping by two different groups. First find the mean times each group spent shopping. Then determine the difference in the mean times. Round your answers to one decimal place.
1 answer