what is the difference between a two-sample t-test and a paired t-test
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 create a new …
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 party...
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 always and …
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 sequence will be (or …
self study - Probability of having 2 girls and probability of having at ...
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 - How many ways can 5 people sit around a table - can ...
Mar 2, 2017 · A probability problem: In how many different ways can 5 people sit around a round table? Is the symmetry of the table important? Answer: If the symmetry of the table is not taken into account …
probability - What is the expected number of children until having the ...
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 probability …
probability - How to approach selecting a sample of three people from …
Oct 29, 2020 · I'm currently studying introductory statistics, and I'm having a difficult time intuitively understanding the approach here. In my textbook, it says: "Selecting a sample of three persons …
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 scores …
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 effect of difficulty …