I'm not exactly sure how to do this particular problem I don't know why kind of graph I'm supposed to use. Thanks for any help!
Question:
Listed below are the survival times in days of 72 guinea pigs after they were injected with infectious bacteria in a medical experiment. Survival times, whether of machines under stress or cancer patients after treatment, usually have distributions that are skewed to the right.
Data:
43, 45, 53, 56, 56, 57, 58, 66, 67, 73, 74, 79, 80, 80, 81, 81, 81, 82, 83, 84, 88, 89, 91, 91, 92, 92, 97, 99, 99, 100, 100, 101, 102, 102, 102, 103, 104, 107, 108, 109, 113, 114, 118, 121, 123, 126, 128, 137, 138, 139, 144, 145, 147, 156, 162, 174 178, 179, 184, 191, 198, 211, 214, 243, 249, 329, 380, 403, 511, 522, 598
(a) Graph the distribution and describe its main features. Does it show the expected right shew?
(b) Which numerical summary would you choose for these data? Calculate your chosen summary. How does it reflect the skewness of the distribution
2007-09-11
08:10:53
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3 answers
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asked by
Anonymous
in
Mathematics