7. Set Xi = i, i = 1, ..., 20, and compute the 20% trimmed mean and the M-estimate of location based on Huber’s . Next set X20 = 200, and compute both estimates of location. Replace X19 with 200, and again, estimate the measures of location. Keep doing this until the upper half of the data is equal to 200. Comment on the resistance of the Mestimator versus 20% trimming.