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Useful for ASRB NET · ISS · APPSC

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  1. Welcome
  2. Course Outcomes
  3. Units in this Course
  4. Recommended Textbooks

Welcome

This is the complete study package for Applied Statistics II — five real-world topics that build on Applied Statistics: growth curves, advanced index numbers, demand analysis, psychological & educational statistics, and test reliability & validity. Each concept has two worked examples.

Pre-requisite: Applied Statistics — particularly Unit 1 (Time Series) and Unit 3 (Index Numbers). Statistical Methods for curve fitting via least squares.

Course Outcomes

  1. Understand different growth curves and methods to construct them.
  2. Interpret and use index-number methods commonly used in business.
  3. Understand demand analysis and perform elasticity calculations.
  4. Calculate scores specific to psychological & educational statistics.
  5. Apply various methods to compute test reliability and validity.

Units in this Course

UNIT 1

Growth Curves

Modified exponential, logistic and Gompertz curves; fitting by method of three selected points and partial sums; detrending and its effect on time-series components.

UNIT 2

Index Numbers (Advanced)

Base shifting; Fixed-base & Chain-base; splicing; deflating; Index of Industrial Production (IIP) — interim and revised series.

UNIT 3

Demand Analysis

Price & partial elasticities; data sources; Leontief, Pigou (time-series & family budget); Engel's law; Pareto's law of income; curves of concentration.

UNIT 4

Psychological & Educational Statistics

Sigma scaling of difficulty; Z scaling; standard, normalized, T- and percentile scores; scaling of rankings and ratings via the normal curve.

UNIT 5

Test Reliability & Validity

Error variance, index of reliability, parallel tests, test-retest, Rulon, Kuder–Richardson; validity; reliability vs validity; Intelligence Quotient (IQ).

PRACTICAL

Practical Course (12 Experiments)

Fitting all three growth curves; index-number transformations; elasticities; Pareto fit; test reliability computation.

REFERENCE

Official Syllabus

Course outline, textbooks, references and exam blueprint.

Next course in learning order: Statistical Quality Control Applied statistics