- Industrial Statistics
Process and product control, general theory of control charts, different types of control charts
for variables and attributes, X, R, s, p, np and charts, cumulative sum chart. Single, double,
multiple and sequential sampling plans for attributes, OC, ASN, AOQ and ATI curves, concepts of
producer’s and consumer’s risks, AQL, LTPD and AOQL, Sampling plans for variables, Use of
Concept of reliability, failure rate and reliability functions, reliability of series and parallel
systems and other simple configurations, renewal density and renewal function, Failure models:
exponential, Weibull, normal, lognormal. Problems in life testing, censored and truncated
experiments for exponential models.
- Optimization Techniques :
Different types of models in Operations Research, their construction and general methods of
simulation and Monte-Carlo methods formulation of Linear Programming (LP) problem, simple LP
model and its graphical solution, the simplex procedure, the two-phase metbod and the
M-technique with artificial variables, the duality theory of LP and its economic interpretation,
sensitivity analysis, transpotation and assignment problems, rectangular games, two-person zerosum games, methods of solution (graphical and algebraic).
Replacement of failing or deteriorating items, group and individual replacement policies,
concept of scientific inventory management and analytical structure of inventory problems, simple
models with deterministic and stochastic demand with and without lead time, storage models
with particular reference to dam type.
Homogeneous discrete-time Markov chains, transition probability matrix, classification of
states and ergodic theorems, homogeneous continuous-time Markov chains, Poisson process,
elements of queuing theory, M/MI, M/M/K, G/M/l and M/G/1 queues.
Solution of statistical problems on computers using wellknown statistical software packages
- Quantitative Economics and Official Statistics:
Determination of trend, seasonal and cyclical components, Box-Jenkins method, tests for
stationary series, ARIMA models and determination of orders of autoregressive and moving
average components, fore-casting.
Commonly used index numbers – Laspeyre’s, Paasche’s and Fisher’s ideal index numbers,
cham-base index number, uses and limitations of index numbers, index number of wholesale
prices, consumer price, agricultural production and industrial production, test fot index numbers
-proportionality, time-reversal, factor-reversal and circular.
General linear model, ordinary least square and generalized least squares methods of
estimation, problem of multi-collinearity, consequences and solutions of multi-collinearity,
autocorrelation and its consequences, heteroscedasticity of disturbances and its testing, test for
independence of disturbances concept of structure and model for simultaneous equations,
problem of identification-rank and order conditions of identifiability, two-stage least sauare
method of estimation.
Present official statistical system in India relating to population, agriculture, industrial
production, trade and prices, methods of collection of official statistics, their reliability and
limitations, principal publications containing such statistics, various official agencies responsible
for data collection and their main functions.
- Demography and Psychometry :
Demographic data from census, registration, NSS other surveys, their limitations. and uses,
definition, construction and uses of vital rates and ratios, measures of fertility, reproduction rates,
morbidity rate, standardized death rate, complete and abridged life tables, construction of life
tables from vital statistics and census returns, uses of life tables, logistic and other population
growth curves, fitting a logistic curve, population projection, stable population, quasi-stable
population, techniques in estimation of demographic parameters, standard classification by cause
of death, health surveys and use of hospital statistics.
Methods of standardisation of scales and tests, Z-scores, standard scores, T-scores, percentile
scores, intelligence quotient and its measurement and uses, validity and reliability of test scores
and its determination, use of factor analysis and path analysis in psychometry.