1. In general, approximately how many values must be altered to make the sample median arbitrarily large?
2. For the values 0, 23, -1, 12, -10, -7, 1, -19, -6, 12, 1, -3, compute the lower and upper quartiles (the ideal fourths).
3. For the values -1, -10, 2, 2, -7, -2, 3, 3, -6, 12, -1, -12, -6, 8, 6, compute the lower and upper quartiles (the ideal fourths).