When you conduct a survey, you want to make sure that you have enough people involved so that the results will be statistically significant. However, the larger your survey, the more time and money you will have to spend to complete it. To maximize your results and minimize your cost, you...
The principal goal of the annual Music Information Re-trieval Evaluation eXchange (MIREX) experiments is to determine which systems perform well and which systems perform poorly on a range of MIR tasks. However, there has been no systematic analysis regarding how well these evaluation results transl...
If you’re feeling lost, don’t worry – it’s all going to make sense in a minute. We now have both our original and the ‘expected’ results, so naturally we’re going to apply a formula using both of these in order to obtain yet another table. This is the last one,...
statistically significant. (I'm assuming the data is normally distributed based on some other tests I ran but I'm interested in knowing how the answer to this question changes if the data isn't normal.) I also thought of using a simple outlier test, but that doesn't outp...
it’s crucial to consider the magnitude and practical relevance of the result. A statistically significant finding can still be trivial in the grand scheme of things, depending on the context and your specific goals. If you're considering how this applies to sample sizes and their impact, check...
Statistical Significanceis a way to tell you if your test results are solid. Statistics isn’t an exact science. In fact, you can think of stats as very finely tuned guesswork. As stats is guesswork, we need to know how close our “guess” is. That’s where significance comes in. ...
The overall test, if statistically significant, simply shows that there issomeassociation other than “chance” in the table. But it does not tell youwhatthe association is. Many times, it is fairly obviouswhatthe association is because there are clear patterns in the data. In those cases, ...
Urbano, J., Downie, J.S., Mcfee, B., Schedl, M.: How Significant is Statistically Significant? The case of Audio Music Similarity and Retrieval. In: ISMIR (2012)Urbano, J., McFee, B., Downie, J.S., Schedl, M.: How significant is statistically significant? the case of audio music...
Suppose Alex, a financial analyst, is curious as to whether some investors had advance knowledge of a company's sudden failure. Alex decides to compare the average ofdaily market returnsbefore the company's failure with those after to see if there's a statistically significant difference between...
and if the p-value of the observed difference between the two returns was 0.08 (corresponding to a confidence level of 92%), then the first researcher would find that the two assets have a difference that isstatistically significant, while the second...