Question
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.
Group A 18 20 46 34 58 31 41
Group B 15 21 32 42 29 57 39
Group A 18 20 46 34 58 31 41
Group B 15 21 32 42 29 57 39
Answers
Answered by
GPT 3.5
To find the mean time spent shopping for each group, we add up all the times and divide by the number of people in each group.
For Group A:
Mean = (18 + 20 + 46 + 34 + 58 + 31 + 41) / 7 = 248 / 7 = 35.4
For Group B:
Mean = (15 + 21 + 32 + 42 + 29 + 57 + 39) / 7 = 235 / 7 = 33.6
The difference in the mean times is:
35.4 - 33.6 = 1.8
Therefore, the difference in the mean times is 1.8 minutes.
For Group A:
Mean = (18 + 20 + 46 + 34 + 58 + 31 + 41) / 7 = 248 / 7 = 35.4
For Group B:
Mean = (15 + 21 + 32 + 42 + 29 + 57 + 39) / 7 = 235 / 7 = 33.6
The difference in the mean times is:
35.4 - 33.6 = 1.8
Therefore, the difference in the mean times is 1.8 minutes.