A Medical Study of the Effects of on Drug X

Essay

A medical study of the effects of on Drug X asked adult volunteers to take a heart-rate test one hour after taking Drug X.Some took a placebo (a pill containing no active ingredients),some were given a regular dose of Drug X,and others were given half a regular dose of Drug X.Here are the 5-number summaries for each group's scores on the test (# of beats that the heart rate increased when timed for 60 seconds): $$\begin{array} { | l | c | c | c | c | c | c | } \hline & \mathrm { n } & \mathrm { Min } & \text { Q1 } & \text { Median } & \text { Q3 } & \text { Max } \\\hline \text { Placebo } & 13 & 0 & 1 & 2 & 3 & 5 \\\hline \text { Half Dose } & 13 & 1 & 2 & 3 & 5 & 8 \\\hline \text { Reg. Dose } & 13 & 1 & 2 & 3 & 7 & 9 \\\hline\end{array}$$ a)Describe the W's for these data.
b)Name the variables and classify each as categorical or quantitative.
c)Write a few sentences comparing the results of the three groups (create parallel boxplots to help you,if necessary.)