Drawing a random sample using a random number table
Random number tables still have several advantages over pseudorandom number generators. One is that they provide the clearest possible documentation of how a random number …
what is the difference between a two-sample t-test and a paired t …
May 16, 2021 · When you use a paired T-test, you are essentially doing a one-sample test, where your one sample consists of the paired differences between outcomes in two groups. If you …
regression - Building a linear model for a ratio vs. percentage ...
Suppose I want to build a model to predict some kind of ratio or percentage. For example, let's say I want to predict the number of boys vs. girls who will attend a party, and features of the …
How to resolve the ambiguity in the Boy or Girl paradox?
Jul 4, 2023 · 1st 2nd boy girl boy seen boy boy boy seen girl boy The net effect is that even if I don't know which one is definitely a boy, the other child can only be a girl or a boy and that is …
self study - Probability of having 2 girls and probability of having …
Aug 18, 2017 · Probability of having 2 girls and probability of having at least one girl Ask Question Asked 8 years, 4 months ago Modified 8 years, 4 months ago
probability - What is the expected number of children until having …
Aug 5, 2023 · A couple decides to keep having children until they have the same number of boys and girls, and then stop. Assume they never have twins, that the "trials" are independent with …
Hypothesis testing: Fisher's exact test and Binomial test
Feb 9, 2022 · Considering the population of girls with tastes disorders, I do a binomial test with number of success k = 7, number of trials n = 8, and probability of success p = 0.5, to test my …
What Statistical Test to Use when Comparing whether there is a ...
Jun 20, 2020 · I edited my question to say that I want to test whether there is a difference between groups (ALC vs Traditional classrooms) in the mean difference of scores (midterm and final …
Interpreting a significant 2-way interaction with post-hoc tests
Pooling across the remaining group was correct. You don't need anymore tests. Take choice 1. Your interaction means the effect of difficulty (hard - easy) in controls is different from the …
Sample notation: When to use capital $N$ vs lowercase $n$?
Jan 10, 2024 · In statistics and psychological research, what is denoted by capital N N vs lowercase n n? I work in psychological research and I've seen them used in two ways: Capital …