Useful tips for everyday
What is a pair of consecutive numbers? Numbers which follow each other in order, without gaps, from smallest to largest. 12, 13, 14 and 15…
Is LDA used for classification? This might go without saying, but LDA is intended for classification problems where the output variable is categorical. LDA supports…
What is a test-retest correlation? Test reliability is measured with a test-retest correlation. In other words, give the same test twice to the same people…
Which type of statistical test is applicable for paired samples? The paired sample t-test, sometimes called the dependent sample t-test, is a statistical procedure used…
What statistical technique would you use to forecast population growth? Arithmetic projection, since it has been employed during periods of population increase, has generally been…
What is the difference between Arima and Holt-Winters? R’s arima , for example, uses a State Space solution under the hood. Holt-Winters has three parameters,…
What is gamma variate? The gamma variate function has been often used to describe the dispersion of a bolus as it passes through a series…
What is sentiment analysis in data analytics? Sentiment analysis is contextual mining of text which identifies and extracts subjective information in source material, and helping…
Can I use MANOVA for two groups? The one-way multivariate analysis of variance (one-way MANOVA) is used to determine whether there are any differences between…
When to use ANOVA vs t test? Difference Between T-test and ANOVA. There is a thin line of demarcation amidst t-test and ANOVA, i.e. when…