Group a 14 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. Around your answer to one decimal place.
The mean time group a spent shopping is blank minutes .
The mean time group b spent shopping is blank minutes.
The mean times group a and group b spent shopping differs by blank minutes.
To find the mean time each group spent shopping:
Group a: (14 + 20 + 46 + 34 + 58 + 31 + 41) / 7 = 244 / 7 = 34.9 minutes
Group b: (15 + 21 + 32 + 42 + 29 + 57 + 39) / 7 = 235 / 7 = 33.6 minutes
The mean time group a spent shopping is 34.9 minutes.
The mean time group b spent shopping is 33.6 minutes.
To find the difference in the mean times:
34.9 - 33.6 = 1.3
Therefore, the mean times group a and group b spent shopping differs by 1.3 minutes.