Showing papers by "Indian Agricultural Statistics Research Institute published in 1981"
TL;DR: In this paper, the efficiency-factor of a treatment contrast in the sense of Jones (1959) is examined from a classical view-point, and two concepts of balancing in block designs, namely, Efficiency-balance and Variance-balance are studied and inter-relationships between these concepts are established.
Abstract: The efficiency-factor of a treatment contrast in the sense of Jones (1959) is examined from a classical view-point. An upper bound for the efficiency-factor of any treatment contrast is obtained and designs are characterised for which the upper bound of the efficiency-factor is attainable by every contrast. Two concepts of balancing in block designs, namely, Efficiency-balance and Variance-balance are studied and inter-relationships between these concepts are established.
5 citations
TL;DR: In this paper, the expressions for the r-th largest standardised deviation have been derived for gamma, gamma, exponential and log-normal distributions and the intensities of selection have been computed for different parametric values of the distributions and p, the proportion saved for samples of size upto 10 and compared with the corresponding values for normal distribution.
Abstract: The expressions for the r-th largest standardised deviate have been derived for beta, gamma, exponential and log-normal distributions. Using these expressions the intensities of selection have been computed for different parametric values of the distributions and of p, the proportion saved for samples of size upto 10 and compared with the corresponding values for normal distribution. The normal approximation to beta and gamma distributions is seen to be quite robust in predicting response to selection under moderately heavy and low cullings.
2 citations
TL;DR: The effect of adding central points to a given design on the G-efficiency has been examined for certain classes of second-order rotatable designs in this article, where the effect of central points on the efficiency of a rotatable design has been investigated.
Abstract: The effect of adding central points to a given design on the G-efficiency has been examined for certain classes of second order rotatable designs.