initial commit / add all books

18 files changed, 75 insertions, 0 deletions

diff --git a/1475/CH4/EX4.11/Example_4_11.sce b/1475/CH4/EX4.11/Example_4_11.sce
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+//Example 4.11 A sample of 6500 screws is taken from a large consignment and 75 are found to be defective

+clc;

+clear;

+n=600;

+m=75;

+P=m/n;

+Q=1-P;

+SE=sqrt((P*Q)/n);

+disp("percent",(P-3*SE)*100,"to",(P+3*SE)*100,"Limits of P are from ");

diff --git a/1475/CH4/EX4.11/Output_4_11.PNG b/1475/CH4/EX4.11/Output_4_11.PNG
new file mode 100755
index 000000000..e04712d18
--- /dev/null
+++ b/1475/CH4/EX4.11/Output_4_11.PNG
diff --git a/1475/CH4/EX4.12/Example_4_12.sce b/1475/CH4/EX4.12/Example_4_12.sce
new file mode 100755
index 000000000..09626da23
--- /dev/null
+++ b/1475/CH4/EX4.12/Example_4_12.sce
@@ -0,0 +1,9 @@
+// Example 4.12 A random sample of 100 ball bearingd selected from a shipment

+clc;

+clear;

+n=100;

+x=0.354;

+N=2000;

+S=0.048;

+SE=(S/sqrt(n))*sqrt((N-n)/(N-1));

+disp("inch",(x-1.96*SE),"to",(x+1.96*SE),"The 95% confidence limits for the population mean are  ",S,"Sample S.D =",N,"Population size N",n,"Sample size");

diff --git a/1475/CH4/EX4.12/Output_4_12.PNG b/1475/CH4/EX4.12/Output_4_12.PNG
new file mode 100755
index 000000000..245597785
--- /dev/null
+++ b/1475/CH4/EX4.12/Output_4_12.PNG
diff --git a/1475/CH4/EX4.13/Example_4_13.sce b/1475/CH4/EX4.13/Example_4_13.sce
new file mode 100755
index 000000000..aad958587
--- /dev/null
+++ b/1475/CH4/EX4.13/Example_4_13.sce
@@ -0,0 +1,11 @@
+//Example 4.13 A random sample of 100 articles taken from alarge batch of article contains 5 defective article

+clc;

+clear;

+n=100;

+p=5/100;

+q=1-p;

+N=2646;

+SE=sqrt((p*q)/n);

+disp((p-2.05*SE),"to",(p+2.05*SE),"The 96% confidence limits for Pare  ",N,"Population size N",n,"Sample size");

+S_E=sqrt(p*q/(n))*sqrt((N-n)/(N-1));

+disp((p-1.96*S_E),"to",(p+1.96*S_E),"The required 95% confidence limits for P are  ");

diff --git a/1475/CH4/EX4.13/Output_4_13.PNG b/1475/CH4/EX4.13/Output_4_13.PNG
new file mode 100755
index 000000000..1c791763d
--- /dev/null
+++ b/1475/CH4/EX4.13/Output_4_13.PNG
diff --git a/1475/CH4/EX4.14/Example_4_14.sce b/1475/CH4/EX4.14/Example_4_14.sce
new file mode 100755
index 000000000..5ca5b7612
--- /dev/null
+++ b/1475/CH4/EX4.14/Example_4_14.sce
@@ -0,0 +1,9 @@
+//Example 4.14 10 life Insurance policies in a sample of 200 taken out of 50,000 were found to be insured for less than Rs 500

+clc;

+clear;

+N=50000;

+n=200;

+p=10/200;

+q=1-p;

+S_E=sqrt(p*q/(n))*sqrt((N-n)/(N-1));

+disp((p-1.96*S_E)*N,"and",(p+1.96*S_E)*N,"The number of each policies lies between   ",(p-1.96*S_E),"to",(p+1.96*S_E),"The required 95% confidence limits for population proportion P are  ");

diff --git a/1475/CH4/EX4.14/Output_4_14.PNG b/1475/CH4/EX4.14/Output_4_14.PNG
new file mode 100755
index 000000000..696f17ed6
--- /dev/null
+++ b/1475/CH4/EX4.14/Output_4_14.PNG
diff --git a/1475/CH4/EX4.15/Example_4_15.sce b/1475/CH4/EX4.15/Example_4_15.sce
new file mode 100755
index 000000000..e1d3e1296
--- /dev/null
+++ b/1475/CH4/EX4.15/Example_4_15.sce
@@ -0,0 +1,8 @@
+//Example 4.15 A random sample of size 10 was drawn from a normal population with an unknown mean

+clc;

+clear;

+n=10;

+v=44.1;

+x=[65 71 80 76 78 82 68 72 65 81];

+m=sum(x)/n;

+disp("inch",(m-1.96*sqrt(4.41)),"to",(m+1.96*sqrt(4.41)),"The 95% confidence interval   ",v,"variance =",m,"Mean =",n,"Sample size");

diff --git a/1475/CH4/EX4.15/Output_4_15.PNG b/1475/CH4/EX4.15/Output_4_15.PNG
new file mode 100755
index 000000000..870c7fc7a
--- /dev/null
+++ b/1475/CH4/EX4.15/Output_4_15.PNG
diff --git a/1475/CH4/EX4.16/Example_4_16.sce b/1475/CH4/EX4.16/Example_4_16.sce
new file mode 100755
index 000000000..683f52859
--- /dev/null
+++ b/1475/CH4/EX4.16/Example_4_16.sce
@@ -0,0 +1,8 @@
+//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  "),

diff --git a/1475/CH4/EX4.16/Output_4_16.PNG b/1475/CH4/EX4.16/Output_4_16.PNG
new file mode 100755
index 000000000..f1d904b20
--- /dev/null
+++ b/1475/CH4/EX4.16/Output_4_16.PNG
diff --git a/1475/CH4/EX4.17/Example_4_17.sce b/1475/CH4/EX4.17/Example_4_17.sce
new file mode 100755
index 000000000..b6bcbff1b
--- /dev/null
+++ b/1475/CH4/EX4.17/Example_4_17.sce
@@ -0,0 +1,6 @@
+// Example 4.17 The standard deviation of a random sample of size 12

+clc;

+clear;

+n=12;

+sd=5.5;

+disp(sqrt((n*(sd^2))/3.82),"to",sqrt((n*(sd^2))/21.92),"The required 95% confidence limits for population proportion s.d are  ")

diff --git a/1475/CH4/EX4.17/Output_4_17.PNG b/1475/CH4/EX4.17/Output_4_17.PNG
new file mode 100755
index 000000000..50020cee5
--- /dev/null
+++ b/1475/CH4/EX4.17/Output_4_17.PNG
diff --git a/1475/CH4/EX4.18/Example_4_18.sce b/1475/CH4/EX4.18/Example_4_18.sce
new file mode 100755
index 000000000..0f4e13bba
--- /dev/null
+++ b/1475/CH4/EX4.18/Example_4_18.sce
@@ -0,0 +1,6 @@
+// Example 4.18 A sample size 8 from a normal population yields as the unbiased estimate of population variance

+clc;

+clear;

+n=8;

+sd=4.4;

+disp(((n-1)*(sd))/0.99,"to",((n-1)*(sd))/20.3,"The required 99% confidence limits for population proportion variance are  ")

diff --git a/1475/CH4/EX4.18/Output_4_18.PNG b/1475/CH4/EX4.18/Output_4_18.PNG
new file mode 100755
index 000000000..6bfc8d089
--- /dev/null
+++ b/1475/CH4/EX4.18/Output_4_18.PNG
diff --git a/1475/CH4/EX4.3/Example_4_3.sce b/1475/CH4/EX4.3/Example_4_3.sce
new file mode 100755
index 000000000..e8bc666b9
--- /dev/null
+++ b/1475/CH4/EX4.3/Example_4_3.sce
@@ -0,0 +1,9 @@
+//Example 4.3 The following observations constitute a random sample from an unknown population

+clear;

+clc;

+x=[14 19 17 20 25];

+n=5;

+M=sum(x)/n;

+s_d=sqrt(sum((x-M)^2)/4);

+SE=s_d/sqrt(n);

+disp(SE,"Standard Error =",s_d,"Standard Mean",M,"Mean");

diff --git a/1475/CH4/EX4.3/Output_4_3.PNG b/1475/CH4/EX4.3/Output_4_3.PNG
new file mode 100755
index 000000000..5ecfc89c0
--- /dev/null
+++ b/1475/CH4/EX4.3/Output_4_3.PNG