Compute the sample median, 25% trimmed mean, 10% trimmed mean, and sample mean for the lifetime data given in Exercise 27, and compare these measures.

In Exercise 27

The article "Study on the Life Distribution of Microdrills" (J. of Engr. Manufacture, 2002: 301-305) reported the following observations, listed in increasing order, on drill lifetime (number of holes that a drill machines before it breaks) when holes were drilled in a certain brass alloy.

11 14 20 23 31 36 39 44 47 50 59 6 65 67 68 71 74 76 78 79 81 84 85 89 91 93 96 99 101 104 05 105 112 118 123 136 139 141 148158 61 168 184 206 248 263 289 322 388 513