91
Identify the best test to be adopted for testing the equality of mean thrips incidence in a set of same samples before and after
spray of a treatment
For estimating population mean {Y} of a study variable Y using... | Agrigyan
92
Indicate the distribution free method used for testing K matched samples based on ordinal level of measurement
93
Non parametric measure of association used in case of categorical level of measurement is
94
In drawing a sample of size n from a finite population of size N using Simple Random Sampling With Replacement
(SRSWR), the probability that a specified unit is included in the sample is
95
For estimating population mean $\bar{Y}$ of a study variable $Y$ using double sampling, information on an auxiliary variable $X$ was collected from a large preliminary sample of size $n'$ units of a population in which $X$ alone was measured to furnish an estimate $\bar{x}'$ of population mean of $X$, as the information about $X$ of the population was not readily available. From this large preliminary sample, a smaller sample of size $n$ was selected and the information on the main variable $Y$ was collected and sample mean $\bar{y}$ and corresponding sample mean $\bar{x}$ were computed. In both phases, SRSWOR was done. The estimates were then used to obtain a ratio estimator $\bar{y}_d = \frac{\bar{y}}{\bar{x}} \bar{x}'$. While deriving the variance of this ratio type mean estimator, the following errors were considered: $e_1 = \frac{\bar{x} - \bar{x}'}{\bar{X}}$ and $e_2 = \frac{\bar{x}' - \bar{X}}{\bar{X}}$. Then, if $S_x^2$ is the population variance of $X$, $E(e_1 e_2)$ is:
1. $\left(\frac{1}{n} - \frac{1}{n'}\right) S_x^2$
2. $\left(\frac{1}{n'} - \frac{1}{N}\right) S_x^2$
3. $0$
4. $\left(\frac{1}{n} - \frac{1}{N}\right) S_x^2$
Design of Experiments
4 Topics
Linear Estimation, Gauss-Markov Theorem & Basic Experimental Designs (CRD, RCBD, Latin Square Design)
Factorial Experiments (2^n, 3^n Series), Complete & Partial Confounding Mechanics
Incomplete Block Designs: Balanced Incomplete Block Designs (BIBD), PBIBD & Lattice Designs
Split-Plot, Strip-Plot, Crossover Designs & Analysis of Covariance (ANCOVA)
General Agriculture
5 TopicsSample Surveys
3 TopicsStatistical Genetics
3 Topics
Population Genetics: Hardy-Weinberg Equilibrium, Selection, Mutation, Migration & Inbreeding Coefficients
Quantitative Genetics: Variance Partitioning, Heritability, Repeatability, Path Analysis & Selection Indices
Mendelian Genetics, Linkage Estimation, Recombination Frequencies & Three-Point Test Cross Mapping
Statistical Methods I
3 TopicsStatistical Methods II
3 Topics
Multivariate Analysis (Wishart, Hotelling T2, MANOVA, PCA, Factor & Cluster Analysis) & Linear Programming Optimization
Hypothesis Testing: Neyman-Pearson Fundamental Lemma, UMP Tests, Likelihood Ratio Tests (LRT) & Non-Parametric Tests
Correlation, Multiple/Partial Regression, Collinearity Diagnostics & Econometric Residual Analysis
Official PYQ Papers
Previous Year Papers of Agricultural Statistics
Practice official shift-wise question papers with answer keys and detailed explanations on the actual exam pattern.
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2024
29-06-2024