FOURTH SEMESTER STATISTICS
APPLIED STATISTICS
UNIT I
Time Series: Time Series and its components with illustrations, additive,multiplicative models. Trend: Estimation of trend by free hand curve method,method of semi averages.Determination of trend by least squares (Linear trend,parabolic trend only), moving averages method.
UNIT II
Seasonal Component: Determination of seasonal indices by simple averages method, ratio to moving average, Ratio to trend and Link relative methods,Deseasonalization.
UNIT III
Growth curves: Modified exponential curve, Logistic curve and Grompertz curve,fitting of growth curves by the method of three selected points and partial sums Detrending. Effect of elimination of trend on other components of the time series
UNIT IV
Index numbers: Concept, construction, problems involved in the construction ofindex numbers, uses and limitations. Simple and weighted index numbers.Laspayer’s, Paasche’s and Fisher’s index numbers, Criterion of a good indexnumber, Fisher’s ideal index numbers. Cost of living index number and wholesale price index number.
UNIT V
Vital Statistics:Introduction, definition and uses of vital statistics, sources of vital statistics.Measures of different Mortality and Fertility rates, Measurement of population growth. Life tables: construction and uses of life tables.