Useful tips for everyday
How to do pairwise comparisons in emmeans matrix? The numerical main results associated with pairwise comparisons can be presented compactly in matrix form via the…
What test could you use to more accurately test for normality? Shapiro-Wilk test Power is the most frequent measure of the value of a test…
How to write a simple exponential smoothing model? The simple exponential smoothing (SES) modelaccomplishes this. Let α denote a “smoothing constant” (a number between 0…
Is the classical estimator of the variance of OLS unbiased? Homoskedastic errors Under simple conditions with homoskedasticity (i.e., all errors are drawn from a distribution…
How do you predict a linear model? Statistical researchers often use a linear relationship to predict the (average) numerical value of Y for a given…
How do you find inverse correlation? For example, with variables A and B, as A has a high value, B has a low value, and…
How do you know when to use population or sample standard deviation? The population standard deviation is relevant where the numbers that you have in…
What is the intercept of the regression is it statistically significantly different from 0? The intercept (often labeled the constant) is the expected mean value…
How to interpret the results of time series plots? Interpret the key results for Time Series Plot Step 1: Look for outliers and sudden shifts…
What is meant by antimicrobial activity? Antimicrobial activity can be defined as a collective term for all active principles (agents) that inhibit the growth of…