Sampling
Thursday, 11 August 2022
Monday, 11 April 2022
Sampling Techniques and Design of Experiments (2020-21 admitted batch Syllabus)
GAYATRI VIDYA PARISHAD COLLEGE
FOR DEGREE AND P.G. COURSES (A)
DEPARTMENT OF
STATISTICS
PROPOSED SYLLABUS
FOR FOURTH SEMESTER
For the
Admitted Batch of 2020-21
Paper-IV: SAMPLING
TECHNIQUES AND DESIGN OF EXPERIMENTS
Assessment |
Internal |
External |
Total |
No. of Hrs per Week |
Credits |
Theory (Marks) |
25 |
75 |
100 |
4 |
4 |
Practical (Marks) |
Internal & External |
50 |
2 |
1 |
·
Course Objectives:
·
The sampling techniques deals with the
ways and methods that should be used to draw samples to
obtain the optimum results, i.e., the maximum information about the
characteristics of the population with the available sources at our disposal in
terms of time, money and manpower to obtain the best possible estimates of the
population parameters
·
This paper throw light on understanding the
variability between group and within group through Analysis of Variance
·
This gives an idea of logical construction of
Experimental Design and applications of these designs now days in various
research areas.
·
Factorial designs allow
researchers to look at how multiple factors affect a dependent variable, both
independently and together.
Unit-I (11 hours) [CO1]
Simple Random Sampling (with and without replacement): Notations and terminology, various
probabilities of selection. Random numbers tables and its uses. Methods of
selecting simple random sample, lottery method, method based on random numbers.
Estimates of population total, mean and their variances and standard errors,
determination of sample size, simple random sampling of attributes.
Unit-II (12 hours)[CO2]
Stratified
random sampling: Stratified
random sampling, Advantages and Disadvantages of Stratified Random sampling,
Estimation of population mean, and its variance. Stratified random sampling
with proportional and optimum allocations. Comparison between proportional and
optimum allocations with SRSWOR.
Systematic
sampling:
Systematic sampling definition when N = nk and merits and demerits of
systematic sampling - estimate of mean and its variance. Comparison of
systematic sampling with Stratified and SRSWOR.
Unit-III (12 hours)[CO3]
Design of Experiments:
Definition, Principles of design
of experiments, CRD: Layout, advantages
and disadvantage and Statistical analysis of Completely Randomized Design(C.R.D).
Unit-IV (12 hours)[CO4]
Unit
– V (11 hours) [CO5]
Factorial
experiments
– Main effects and interaction effects of 22 and 23 factorial experiments and their
Statistical analysis. Yates procedure to find factorial effect totals.
Text Books:
1.
Telugu
AcademyBA/BSc III year paper - III Statistics - applied statistics - Telugu academy by
Prof.K.Srinivasa Rao, Dr D.Giri. Dr A.Anand, Dr V.Papaiah Sastry.
2.
K.V.S.
Sarma: Statistics Made Simple: Do it yourself on PC.PHI.
Reference books:
1.
Fundamentals
of applied statistics : VK Kapoor and SCGupta.
2.
Indian
Official statistics - MR aluja.
3. Anuvarthita Sankyaka Sastram - Telugu Academy.
Practicals - Semester – IV
Sampling Techniques:
Estimation of population mean and its variance by
1. Simple
random sampling with and without replacement. Comparison between SRSWR and
SRSWOR.
2. Stratified
random sampling with proportional and optimum allocations. Comparison between
proportional and optimum allocations with SRSWOR.
3. Systematic
sampling with N=nk. Comparison of systematic sampling with Stratified and SRSWOR.
Design of Experiments:
4.
ANOVA
- one - way classification with equal and unequal number of observations
5.
ANOVA
Two-way classification with equal number of observations.
6.
Analysis
of CRD.
7.
Analysis
of RBD Comparison of relative efficiency of CRD with RBD
8.
Estimation
of single missing observation in RBD and its analysis
9.
Analysis
of LSD and efficiency of LSD over CRD and RBD
10. Estimation of single missing
observation in LSD and its analysis
11. Analysis of 22 with
RBD layout
12. Analysis of 23 with RBD layout
The Student shall get
1. Introduced to various statistical sampling
schemes such as Simple Random Sampling and
related concepts
2. An idea about stratified, systematic sampling
and its related concepts
3. Carry out one way and two way Analysis of
Variance and Understand the basic terms used in design of
experiments and Completely randomized design
4. Understand the RBD and LSD experiments and
its analysis,
5. Understand the basic terms used in
Factorial experiments and their statistical analysis.
Thursday, 18 November 2021
Wednesday, 3 November 2021
5.4. Latin Square Design
Latin
Square Design (LSD):
The
entire experimental area is divided into relative homogeneous groups / blocks
with respect to two sources of variation rows and columns, treatments are now
allocated to all experimental units in rows and columns in a such a way that
every treatment occurs once and only once in each row and column, such design
is called Latin Square Design.
Lay
out of LSD:
In
LSD, the number of treatments and number of replications are equal i.e., the
number of rows is equal to number of columns. Suppose we consider m treatments,
then there is mxm = m2 experimental units. So the whole experimental
area is divided into m2 experimental units and arranged in a square
so that each row and column consists of m units. Then the m treatments are allocated
at random to these rows and columns in such a way that every treatment occurs
once and only in each row and in each column. This lay out is known as mxm LSD.
For
example:
A |
B |
C |
B |
C |
A |
C |
A |
B |
A |
B |
C |
D |
B |
C |
D |
A |
C |
D |
A |
B |
D |
A |
B |
C |
Advantages:
1.
LSD controls variation in three ways i.e., row, column and treatment
2.
The statistical analysis is simple even with missing value
3.
More than one factor can be studied simultaneously and with fewer trials than
more complicated designs.
Dis
advantages:
1.
The number of treatments is equal to the number of replications in LSD, this
restricts the use of this design.
2.
If several units are missing in LSD, the statistical analysis is more complex
3.
LSD, performs only on a square field but RBD or CRD can perform rectangular
fields also
4.
The fundamental assumption that there is no interaction between different
factors may not be true in general.
Wednesday, 18 August 2021
Syllabus and Modal Paper
GAYATRI VIDYA PARISHAD COLLEGE FOR DEGREE AND P.G. COURSES (A)
DEPARTMENT OF STATISTICS
SYLLABUS FOR FIFTH SEMESTER.
w.e.f 2015-16
Paper – V: SAMPLING TECHNIQUES AND
DESIGN OF EXPERIMENTS
Course
Objectives:
The objective of the course is to understand
an overview of the concepts of how to plan, design and conduct sampling
technique efficiently and effectively, theory and applications of various
sampling procedures in survey research methods. To understand the procedure of
testing of hypothesis, analysis and interpretation of ANOVA technique. To
understand the concepts of design of experiments, various designs and
statistical analysis issues.
Unit-I (10 hours) [CO1]
Sampling Theory: Principle steps in
a sample survey, Censes versus sample survey, sampling and Non-sampling errors.
Types of sampling - subjective, probability and mixed sampling methods.
Unit-II (10 hours)
[CO2]
Simple Random Sampling: Meaning of
Samples and methods to draw, estimation of population mean, variances in
SRSWR& SRSWOR.
Unit-III
(11 hours) [CO3]
Stratified random sampling:
Proportional and optimum allocation of sample sizes in stratification.
Variances in these methods. Systematic sampling: Systematic sampling when N =
nk comparison of their relative efficiencies. Advantages and Disadvantages of
above methods of sampling.
Unit-IV (11 hours) [CO4]
Analysis of Variance: One way with equal and unequal classifications and two way classifications.
Unit
– V
(13 hours) [CO5]
Design of Experiments: Principles
of experimentation in Designs, analysis of completely randomised design (CRD),
and Randomised block design (RBD) and Latin square design (LSD) including one
missing observation. Efficiency of these designs and concept of factorial
Experiment.
Practical’s Semester – V:
1.
Estimation of population Mean,
variance by SRSWOR.
2.
Estimation of population Mean, variance
by SRSWR.
3.
Comparison of proportional, optimum
allocations with SRSWOR.
4.
Systematic Sampling.
5.
ANOVA-CRD.
6.
ANOVA - RBD with one missing
observation.
7.
ANOVA - LSD withone missing
observation.
8.
Practical’s are to be conducted using MS-Excel.
Course Objectives:
1. Student can learn an overview of the concepts of how to
plan, design and different sampling techniques
2. Student able to conduct sampling technique efficiently and
effectively, understand the theory and applications of Simple Random sampling method.
3. Student able to conduct sampling technique efficiently and
effectively, understand the theory and applications of Stratified and
Systematic sampling methods.
4. Student can enhance the procedure of testing of hypothesis,
analysis and interpretation of ANOVA technique.
5. Student acquires
knowledge about the concepts of design of experiments, various designs and applies
ANOVA technique for analysis of designs.
Text Books:
1.
Telugu
AcademyBA/BSc III year paper - III Statistics - applied statistics - Telugu
academy by Prof.K.SrinivasaRao, Dr D.Giri. Dr A.Anand, Dr V.PapaiahSastry.
2.
Statistics
Made Simple: Do it yourself on PC, K.V.S. Sarma,PHI.
Reference
Books:
1.
Fundamentals of applied statistics: VK
Kapoor and SC Gupta.
2.
AnuvarthitaSankyakaSastram- Telugu Academy, V L Narasimham.
e-Source: (Sampling Techniques and Design of
Experiments)
https://www.youtube.com/watch?v=bQ5_PPRPjG4
https://www.youtube.com/watch?v=mlQRIoBErso
https://www.youtube.com/watch?v=yx5KZi5QArQ
https://www.youtube.com/watch?v=rsNCCQhkKN8
https://www.youtube.com/watch?v=sYRUYJYOpG0
https://www.youtube.com/watch?v=q48uKU_KWas
https://www.youtube.com/watch?v=5eGHZsGi4ZE
https://www.youtube.com/watch?v=82GOJMqKd2Y
GAYATRI VIDYA PARISHAD COLLEGE FOR DEGREE AND P.G COURSES (A) |
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III Year B.Sc. (STATISTICS) |
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Semester – V, MODEL PAPER |
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PAPER-V: SAMPLING
TECHNIQUES AND DESIGN OF EXPERIMENTS |
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(With effect from 2017-18)
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Date: |
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Max. Marks: 75 |
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TIME: |
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SECTION – A |
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I. Answer the
following questions |
4× 10 = 50 M |
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1. (a) |
Explain
in detail various steps in sample survey.(CO1) |
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OR |
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(b) |
Explain
sampling and non-sampling errors.(CO1) |
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2.(a) |
Define Simple Random Sampling. In Simple Random
Sampling without replacement, show that Var () = .
(CO2) |
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OR |
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(b) |
How do you allocate the sample
sizes from different strata in stratified random sampling? Also show that Var
( ≥ Var (.
(CO2) |
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3. (a) |
Write
advantages and disadvantages of systematic sampling.(CO3) |
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OR |
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(b) |
Describe the statistical analysis of
two-way ANOVA.(CO4) |
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4. (a) |
Explain the principles of
experimentation.(CO5) |
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OR |
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(b) |
Analyse
the Randomized Block Design.(CO5) SECTION-B |
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II.
Answer any Five of the following questions |
5 ´
3 = 15 M |
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5. |
Explain
the subjective sampling method.(CO1) |
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6. |
Describe
various probability sampling methods.(CO2) |
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7. |
What
is Simple Random Sampling with replacement and without replacement?(CO3) |
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8. |
What
are the advantages and disadvantages of stratified random sampling?(CO3) |
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9. |
Describe
the statistical analysis of one-way ANOVA.(CO4) |
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10. |
State
the assumptions of two-way ANOVA.
(CO4) |
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11. |
Write
a note on Factorial experiment.
(CO5) |
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12. |
Define
the experimental error.(CO5) |
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SECTION – C |
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III. Answer All
the following questions |
10 ´
2 = 20 M |
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13. |
Distinguish
between census survey and sample survey.(CO1) |
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14. |
State
the limitations of sampling.(CO1) |
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15. |
What
is the estimate of population total in simple random sampling?(CO2) |
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16. |
Describe
the method of Random Numbers.(CO2) |
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17. |
Describe
the disadvantages of stratified random sampling.(CO3) |
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18. |
Define
stratified random sampling.(CO3) |
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19. |
State
the assumptions of one-way ANOVA.
(CO4) |
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20. |
Define
Least Significant Difference.(CO4) |
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21. |
State
the advantages of CRD.(CO5) |
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22. |
State the formula for finding missing value in LSD.(CO5)
GAYATRI VIDYA PARISHAD COLLEGE FOR DEGREE & P.G.
COURSES (A) III Year B.Sc. (STATISTICS) SEMESTER-V, (BLUE PRINT) Paper-V: SAMPLING
TECHNIQUES AND DESIGN OF EXPERIMENTS Time: 3hours Max.Marks:75
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Simple Random Sampling It is a technique of drawing a sample in such a way that each unit of population has an equal and independent cha...
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Source: Fundamentals of Applied Statistics, SCGupta & VK Kapoor Applied Statistics, Parimal Mukhopadya, B.A/B.Sc. Third Year Applied Sta...