Useful tips for everyday
How do you find the average rate? Plan The average rate is given by the change in concentration, ∆[A], divided by the change in time,…
What is true about cross-validation? Cross-validation is a technique in which we train our model using the subset of the data-set and then evaluate using…
How does non response bias affect results? Non response bias is introduced bias in statistics when respondents differ from non respondents. In other words, it…
What are flexible models? A flexible model allows you to take full advantage of a large sample size (large n). A flexible model will be…
Which is an example of a model overfitting? Formally, overfitting referes to the situation where a model learns the data but also the noise that…
How to produce a confusion matrix from cross validation? Any help in the right direction would be appreciated. The problem with your code is you…
How to interpret an insignificant indirect + insignificant direct effect? The total effect is nonsignificant ( p = .22), the direct effect is significant (…
Is null hypothesis always no significant difference? A null hypothesis is a type of hypothesis used in statistics that proposes that there is no difference…
What does it mean to be robust to outliers? Robust statistics are resistant to outliers. For example, the mean is very susceptible to outliers (it’s…
What is the confidence level in a confidence interval? Confidence level refers to the percentage of probability, or certainty, that the confidence interval would contain…