Hi all, I have small sample of severity data of one disease: data test;
infile datalines dlm="," dsd;
input severity @@;
datalines;
0,0,0,1,1,1,1,1,1,1,1,1,1,1,2,2,2,2,3,3,3,3,4,4,5,5,5,5,6,7,9,10,11
;
run; The question is: how to reveal if the sample belongs to population with normal distribution? How to see that 95% of values are within mu +/- 2 sigma, 68% of values are within mu +/- 1 sigma, median is nearby mean. Here it is the code from the adjacent topic but how to see and visualize on diagram median, mean, sigma, 2 sigma, 3 sigma. proc univariate data=test;
var severity;
histogram severity / href=(2.0 1.0 7.0);
inset P10 median P90 / position=NE;
run;
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