A research team at a large university hospital has just completed a
pilot study of an innovative new treatment that is intended to be used
to treat patients in the later stages of prostate cancer.  They had 12
patients, males, ranging in age from 47 to 73.  all had been 
diagnosed as in stage 4 of the disease withing 4 weeks of agreeing to
participate in the study.  Here from lowes to highest, are the number
of weeks that the patients lived after treatment. 
3,5,6,6,8,8,9,9,9,10,11,45
The mean number of weeks that a prostate cancer patient lives after
receiving a confirmed diagnosis of being in stage 4 is 9.6 with a
standard deviation of 3.2.  The rearchers found that the mean number
of weeks that the patients in this study survived was 10.75 with a
standard deviation of 11.02

Express your views on the level of promise that this study shows using
central tendency.  And under what conditions the different types
should be used, the meaning of the standard deviation, and any other
relevant comments you would have if you were a member of a committe
evaluating this study to determine if more money should be granted to
these researchers.