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| author | priyanka | 2015-06-24 15:03:17 +0530 |
|---|---|---|
| committer | priyanka | 2015-06-24 15:03:17 +0530 |
| commit | b1f5c3f8d6671b4331cef1dcebdf63b7a43a3a2b (patch) | |
| tree | ab291cffc65280e58ac82470ba63fbcca7805165 /331/CH8/EX8.26/Example_8_26.sce | |
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diff --git a/331/CH8/EX8.26/Example_8_26.sce b/331/CH8/EX8.26/Example_8_26.sce new file mode 100755 index 000000000..0a325f540 --- /dev/null +++ b/331/CH8/EX8.26/Example_8_26.sce @@ -0,0 +1,65 @@ +//Caption:One-tailed Tests Concerning Difference between Two Proportions
+//Test 1: Ho: p1-p2<=0 and H1: p1-p2>0
+//Example8.26
+//Page277
+
+clc;
+n1= 120; //sample size of the vendor-1
+n2 = 100; //sample size of the vendor-2
+N1 = 15;//number of defective pieces in the sample-1
+N2 = 11;//number of defective pieces in the sample-2
+p1 = N1/n1; // proportion w.r.to vendor-1
+p2 = N2/n2; // proportion w.r.to vendor-2
+Stdp1_p2 = sqrt(((p1*(1-p1))/n1)+((p2*(1-p2))/n2))
+alpha = 0.05;
+Test = input('Enter the type of test=')
+Zp1_p2 = ((p1-p2)-(0))/Stdp1_p2; //calculated normal statistic for (p1-p2)
+disp(Zp1_p2,'The calculated normal statistic for (p1-p2)=')
+z_Stand = standard_normal_zstat(alpha);//standard normal statistic for (p1-p2)
+disp(z_Stand,'The Standard normal statistic for (p1-p2)=')
+if (Test==1) then
+ if(Zp1_p2 < z_Stand) then
+ disp('It falls in the Acceptance Region')
+ disp('Then Null Hypothesis Ho should be Accepted')
+ elseif(Zp1_p2 > z_Stand) then
+ disp('It falls in the Rejection Region')
+ disp('Then Null Hypothesis Ho should be Rejected')
+ end
+elseif (Test==2) then
+ if(Zp1_p2 >-z_Stand)
+ disp('It falls in the Acceptance Region')
+ disp('Then Null Hypothesis Ho should be Accepted')
+ elseif(Zp1_p2<-z_Stand)
+ disp('It falls in the Rejection Region')
+ disp('Then Null Hypothesis Ho should be Rejected')
+ end
+end
+//Result
+//Enter the type of test=1
+//
+// The calculated normal statistic for (p1-p2)=
+//
+// 0.3449910
+//
+// The Standard normal statistic for (p1-p2)=
+//
+// 1.64
+//
+// It falls in the Acceptance Region
+//
+// Then Null Hypothesis Ho should be Accepted
+//
+//-->p1
+// p1 =
+//
+// 0.125
+//
+//-->p2
+// p2 =
+//
+// 0.11
+//
+//-->Stdp1_p2
+// Stdp1_p2 =
+//
+// 0.0434794
\ No newline at end of file |