Answer Recent Asked Questions on TransWikia.com ~ Page 134

Is there any anova-like approach for calculating contingency tables across multiple levels within a factor

I want to compare success rates across a large number of different levels within a third factor to detect if there are statistically significant differences for at least one of...

Cross Validated Asked by Brad Davis on 2 years ago

How to extend Plackett-Burman design to further explore the interactions?

My situation is as follows: I have built a 2-level Plackett-Burman design with 10 factors (some are actual 0/1-variables, the others are numeric and I used the minimum and the...

Cross Validated Asked by NoThanks93330 on 2 years ago

What is the difference between RMSE and SEP

I would like to understand the difference between Root Mean Squared Error and the Standard Prediction Error. The SEP formula is simillar to the RMSE, but with an aditional term...

Cross Validated Asked by Tiago Dias on 2 years ago

How to choose an optimizer for your Neural Network?

My question boils down to this : Which optimizer should I use to train my neural network. I understand this question depends on the problem. However, for instance it seems...

Cross Validated Asked by White on 2 years ago

Box-Cox data transformation to enable linear regression

I am performing multiple linear regression to predict a score (dependent variable) from multiple categorical variables. My dependent variable has skewed distribution with a large number of zero values but...

Cross Validated Asked by CBGodbole on 2 years ago

Why isn't simulation showing that ridge regression better than linear model

I am learning about ridge regression. I was under the impression that ridge regression is valuable because it provides better out of sample predictive accuracy than standard linear models. For...

Cross Validated Asked by andy_dorsey on 2 years ago

Does the t statistic have uses unrelated to hypothesis testing?

Are there non-hypothesis testing uses for Student's t statistic?...

Cross Validated Asked on 2 years ago

Show $mathbb{P}[X-m>alpha]leq frac{sigma^2}{sigma^2+alpha^2}$

I found this problem in an old statistics book: Suppose $X$ is a square integrable random variable with mean $m$ and variance $sigma^2$. For any ...

Mathematics Asked on 2 years ago

If $f(AB)=f(A)f(B)$ then $f(A)=g(det(A))$

Let $mathbb{K}$ a field, $f: M_n(mathbb{K}) to mathbb{K}$ non constant sucht that: $f(AB)=f(A)f(B)$. Prove that there exist an endomorphism $g$ on the monoid $(mathbb{K}, cdot)$...

Mathematics Asked on 2 years ago

Extend a measure to a Radon measure

A Radon measure $mu:mathcal{P}(mathbb{R}^n)to [0,infty]$ is an outer measure such thatEach Borel set $Einmathcal{B}(mathbb{R^n})$ is $mu$-measurable;For every $Fsubset mathbb{R}^n$, there exists $Ein mathcal{B}(mathbb{R^n})$ such that...

Mathematics Asked by inbrevi on 2 years ago

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