Example: Correlational research questionIs there a relationship between parental income and college grade point average (GPA)? Table of contents Step 1: Write your hypotheses and plan your research design Step 2: Collect data from a sample Step 3: Summarize your data with descriptive statistics Ste...
Humans make decisions using statistical information every day. For example we weigh the likelihood of various factors when deciding what to bet in card games.However, humans aren't alone in using statistical inferences in decision-making. Until now, human cousins like monkeys and also some birds ...
Since the graph knowledge is usually not fully known, it is a question whether our methods can still perform well without accurate prior knowledge. For the thirty provinces case, we report the results of the proposed model with a mismatch between the partition of the regions and the ground ...
the article by galesic and garcia-retamero reports that a probabilistic sample of americans and germans could answer only two-thirds of simple statistical numeracy questions correctly. the most difficult task was to express 1 in 1000 as a percentage (question 3), which only 24% of the americans...
The bad news is that now you’re not estimating either A or B, you’re estimating (A+B)/2, so the question is what interpretation does this have. Here’s an example where some averaging is ok. Way back a few decades ago my colleagues and I estimated “the incumbency advantage” in...
Motivated by an important biological question that how the network structure of cellular interactome change from one condition to another, we derived a formal statistical test for the differential network analysis based on the inference of GGM. Our method not only provided statistical inference of the...
But this led to my next big question: once you've decided to run a test, how do you actually determine statistical significance? Thankfully, while the math might sound intimidating, there are simple tools and methods for getting accurate answers. Let's break it down step by step. How to...
That’s just wack, and I have no intuition on this sort of geometry problem. Math is weird. I can use dimensionality analysis to check that it’s not necessarily wrong, and I could work out a simple example with an equilateral triangle to check that it works for a special case, but ...
From EFA, CFA and descriptive statistics we know that the immunosignatures as a whole are in fact different across groups while corrected T-Tests show that there are statistically significant systematic variations. The logical question arising from these findings is how precisely do the immunosignature...
Similarly, whether to review uncertainty from granular data (e.g. epochs) or across an entire data set (e.g. whole night recording) likely depends on the clinical question and need for accuracy. For example, if the clinical question is the presence/absence of obstructive sleep apnea, ...