Useful tips for everyday
What is the range of values used to estimate the parameter? interval estimate interval estimate: A range of values used to estimate a population parameter.…
What is the difference between association and correlation in statistics? Association is a very general relationship: one variable provides information about another. Correlation is more…
What is repeatability of measurement? Repeatability or test–retest reliability is the closeness of the agreement between the results of successive measurements of the same measure,…
How to get a covariance matrix for a multivariate normal? So for multivariate normals, either can be done in a fairly straightforward manner: With first…
When selecting a stratified sample the sample size is determined for each stratum and selected from that stratum? In this approach, each stratum sample size…
What is probabilistic model in operation research? Tools include renewal theory, Markov processes and queuing analysis, while application areas include production and inventory control, health-management,…
What are the steps in a multiple regression analysis? 8 Steps to Multiple Regression Analysis. Following is a list of 7 steps that could be…
How do you measure generalizability in research? Inter-rater reliability can be measured using the Cohen’s kappa (k) statistic. Kappa indicates how well two sets of…
Where is EM algorithm used? The EM algorithm is used to find (local) maximum likelihood parameters of a statistical model in cases where the equations…
What is RSS and R2? R-square value gives the measure of how much variance is explained by model . R-Square value can be defined using…