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+//Eg-6.14
+//pg-304           
+
+clear
+clc
+
+//mean and standard deviation are given as
+x=1.011;
+s=.108;
+
+n=500;
+a=1;
+
+d=(x-a)/(s/n^.5);
+if d<=1.96 & d>=-1.96 then
+    disp("null hypothesis :Ho:u=1mm is accepted")
+else
+    disp("the value of d lies outside range.Therefore we will reject HO at 0.05 level of significance")
+end
+
+