Useful tips for everyday
When would you use a Wilcoxon Rank Sum Test? The Wilcoxon rank-sum test is commonly used for the comparison of two groups of nonparametric (interval…
What does the p-value tell you in statistical significance testing? In statistics, the p-value is the probability of obtaining results at least as extreme as…
How can statistics be used in real life? Statistics are used behind all the medical study. Statistic help doctors keep track of where the baby…
Does sample size affect F-test? If the sample sizes in an ANOVA increase, the variation about the means will diminish but the variation between means…
How can we eliminate confounding variables? There are several methods you can use to decrease the impact of confounding variables on your research: restriction, matching,…
What is the difference between grid search and random grid search? Random search is the best parameter search technique when there are less number of…
How is multivariable logistic regression used in statistics? This is done using “multivariable logistic regression” – a technique that allows us to study the simultaneous…
When would you use a multinomial test? In statistics, the multinomial test is the test of the null hypothesis that the parameters of a multinomial…
What should residual plot look like? The residual plot shows a fairly random pattern – the first residual is positive, the next two are negative,…
Do you reject null if statistically significant? A p-value less than 0.05 (typically ≤ 0.05) is statistically significant. It indicates strong evidence against the null…