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+//One-tailed Tests Concerning Single Mean
+//(When the variance of the Population is UnKnown and the Sample size is Large)
+//Example8.9
+//Page245
+//Test2: Ho:u>=k; H1:u<k
+
+clc;
+N = input('Enter the Population size');
+u = input('Enter the Population Mean');
+Sigma2 = input('Enter the Sample variance');
+std = sqrt(Sigma2); //standard deviation 
+n = input('Enter the Sample Size');
+X = input('Enter the Sample Mean');
+alpha = input('Enter the significance level');
+Test = input('Enter the Type of test')
+//Calculation of Z statistic 
+Zx = nor_dist_stat_finite_po(X,u,std,n,N)
+disp(Zx,'calculated Normal Z-statistic =')
+Z_alpha = standard_normal_zstat(alpha)
+disp(Z_alpha,'Standard Normal Stastistic=')
+if (Test==1) then
+    if(Zx < Z_alpha) then
+        disp('It falls in the Acceptance Region')
+        disp('Then Null Hypothesis Ho should be Accepted')
+     elseif(Zx > Z_alpha) then
+        disp('It falls in the Rejection Region')
+        disp('Then Null Hypothesis Ho should be Rejected')
+    end
+elseif (Test==2) then
+    if (Zx > -Z_alpha) then
+        disp('It falls in the Acceptance Region')
+        disp('Then Null Hypothesis Ho should be Accepted')
+     elseif (Zx <- Z_alpha)then
+        disp('It falls in the Rejection Region')
+        disp('Then Null Hypothesis Ho should be Rejected')
+    end
+end
+//Result
+//Enter the Population size 900
+//Enter the Population Mean 50
+//Enter the Sample variance 1.44
+//Enter the Sample Size 49
+//Enter the Sample Mean 49.8
+//Enter the significance level 0.1
+//Enter the Type of test 1
+// 
+// calculated Normal Z-statistic =   
+// 
+//  - 1.1991178  
+// 
+// Standard Normal Stastistic=   
+// 
+//    1.28  
+// 
+// It falls in the Acceptance Region   
+// 
+// Then Null Hypothesis Ho should be Accepted 
+\ No newline at end of file