FF 3 1.A sample of eight adults was taken, and these adults were asked about the time they spend per week on sport activities. Their responses (in hours) are as follows: 45; 12; 31; 16; 28; 14; 18; 26...

Extracted text: FF 3 1.A sample of eight adults was taken, and these adults were asked about the time they spend per week on sport activities. Their responses (in hours) are as follows: 45; 12; 31; 16; 28; 14; 18; 26 Make a 95 % confidence interval for the mean of time spent per week by all adults on sport activities.