An experiment to study the lifetime (in hours) for a certain type of component involved putting ten components into operation and observing them for 100 hours. Eight of the components failed during that period, and those lifetimes were recorded. Denote the lifetimes of the two components sng after 100 hours by 100+. The resulting sample observations were as follows 49 78 100+35 92 85 56 100+ 18 28 Which of the measures of conter discussed in this section can be calculated? [Note: The data from this experiment is said to be "censored on the right."] a) population mean b) sample mean c) 10% trimmed mean d) 20% trimmed mean e) population median f) sample median What are the values of those measures? (Enter NONE for any measure of center you did not select above. Round your answers to two decimal places.) a) population mean b) sample mean c) 10% trimmed mean d) 20% trimmed mean e) population median f) sample median