Useful tips for everyday
Does Likert scale need neutral? You might have noticed in some surveys that there is often no “neutral” or “undecided” category included in the middle…
When should you use a regression line to predict Y from X? We can use the regression line to predict values of Y given values…
What is Overfitted and Underfitted model? Overfitting in Machine Learning Overfitting refers to a model that models the training data too well. Overfitting happens when…
How do you test for a placebo effect? Testing for a placebo effect can be done with the same analytic approach. Using only those randomized…
What is a cross-sectional time series data? Time series data consist of observations of a single subject at multiple time intervals. Cross sectional data consist…
Is Latin square design possible? This type of design allows the separation of an additional factor from an equal number of blocks and treatments. If…
How do you test a hypothesis in biostatistics? Steps in hypothesis testing Decide upon the hypothesis test (i.e., test of statistical significance) that is to…
What are price forecasts? Price Forecasts provide an 18-month prediction on the future price of a chemical commodity by carefully assessing market drivers and feedstock…
Do I need to transform my data? If you visualize two or more variables that are not evenly distributed across the parameters, you end up…
What is the alternative hypothesis for ANOVA? The null hypothesis in ANOVA is always that there is no difference in means. The research or alternative…