The mean time spent shopping for Group A is:
(18 + 20 + 46 + 34 + 58 + 31 + 41) / 7 = 32.9 minutes
The mean time spent shopping for Group B is:
(15 + 21 + 32 + 42 + 29 + 57 + 39) / 7 = 34.3 minutes
The difference in the mean times is:
34.3 - 32.9 = 1.4 minutes
Rounded to one decimal place, the difference in the mean times is 1.4 minutes.
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
1 answer