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+//Example 4.16 A random sample of 10 students of class II was selected from schools in a certain region
+clc;
+clear;
+x=[38 46 45 40 35 39 44 45 33 37];
+n=10;
+m=sum(x)/n;
+s=sqrt(18.96);
+disp((m+2.26*(s/3)),"to",(m-2.26*(s/3)),"The 95% confidence limits for mean weight are  "),