Useful tips for everyday
What are the ways to improve availability maintainability and reliability of an equipment? 5 Ways to Improve Equipment Reliability and Avoid Downtime in Your Food…
How is Matchit based on a propensity score? Matching is based on propensity scores estimated with logistic regression. (see previous post on propensity score analysis…
How do you find the cumulative distribution function of a continuous random variable? The cumulative distribution function (cdf) of a continuous random variable X is…
How to test two way interactions in regression? Two Way Interactions In the regression equation for the model y = A + B + A*B…
Is it possible to do time series with multiple independent variables? Time Series with multiple independent variables is it possible to do a time series…
What is the conditional mean independence? A conditional mean is also known as a regression or as a conditional expectation. conditional-independence assumption. The conditional-independence assumption…
What is robust regression in R? Robust regression is an alternative to least squares regression when data are contaminated with outliers or influential observations, and…
How do I compare models in SPSS? There are two different ways to compare nested models using SPSS. Get the multiple regression results for each…
What are the different stat tests? There are many different types of tests in statistics like t-test,Z-test,chi-square test, anova test ,binomial test, one sample median…
What is a knot in a cubic spline? Knots are where different cubic polynomials are joined, and cubic splines force there to be three levels…