hi there could someone please help me with these questions

Seligman, Nolen-Hecksema, Thornton, and Thornton (1990) classified participants in their study (who were members of a university swim team) as Optimists or Pessimists. They then asked them to swim their best event, and in each case they reported times that were longer than the swimmer actually earned. Half an hour later they asked them to repeat the event again. The dependent variable was Time1/Time2Time1/Time2 so a ratio greater than 1.0 indicates faster times on the second trial. Calculate the mean for each group. Seligman et al.thought that optimists would try harder after being disappointed. Based on the means, does it look as if they were correct? The data are as follows:

Optimists:

0.986 1.108 1.080 0.952 0.998 1.017 1.080 1.026 1.045 0.996 0.923 1.000 1.003 0.934 1.009 1.065 1.053 1.108 0.985 1.001 0.924 0.968 1.048 1.027 1.004 0.936 1.040

Pessimists:

0.983 0.947 0.932 1.078 0.914 0.955 0.962 0.944 0.941 0.831 0.936 0.995 0.872 0.997 0.983 1.105 1.116 0.997 0.960 1.045 1.095 0.944 1.069 0.927 0.988 1.015 1.045 0.864 0.982 0.915 1.047

Question 17:

Describe what happens to the mean and median for the optimist data if each value has 5 added to it?

Question 18:

Describe what happens to the mean and median for the optimist data if each value has 2 multiplied to it?