Recovering from Surgery: A new post surgical treatment was compared with a standard treatment. Seven subjects received the new treatment, while seven others (the controls) received the standard treatment. The recovery times, in days are given below. Treatment 12 13 15 19 20 21 24 Control 18 23 24 30 32 35 39 Questions: a) Compute the following statistical measures. Use your calculator to fill in the table below. Sample mean Median Sample Standard dev. New Treatment Control (standard) B) Which group has more variation in the recovery times and why?

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