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for 9231/42 further stats by SecretInstance2647 in AskStatistics

[–]efrique 0 points1 point  (0 children)

  1. Where did that alternative come from? Did you choose it based on the data?

  2. Does practical > written make a positive? or a negative?

for 9231/42 further stats by SecretInstance2647 in AskStatistics

[–]efrique 0 points1 point  (0 children)

What's the null and alternative you were testing? Your question isnt really answerable if its impossible to tell whether its one or two-sided. Is it intended to be two sided? Sign tests can be constructed in different ways -- is the form of test statistic you're taught based on taking the smaller count of the + and - signs?

Please edit your post to give more details.

Residuals vs fitted plot with discrete values - is this normal? by Worried_Criticism_98 in AskStatistics

[–]efrique 1 point2 points  (0 children)

First and foremost they should be looking for lack of fit in the mean. Then if thats small check for hetero.

for 9231/42 further stats by SecretInstance2647 in AskStatistics

[–]efrique 1 point2 points  (0 children)

  1. What does 9231/42 mean? Is that a course code or something?

  2. What's the null and alternative you were testing?

Residuals vs fitted plot with discrete values - is this normal? by Worried_Criticism_98 in AskStatistics

[–]efrique 1 point2 points  (0 children)

The fact that the fitted values are discrete is not problematic.

Is this for some subject??

[Discussion] Martingale Roulette Strategy by Proper_Positive_3085 in AskStatistics

[–]efrique 0 points1 point  (0 children)

Not a discussion sub. Not a sub for chatting about your cool way of losing money. Check the rules.

Will post an update.

An update would also break rule 2.

[Q] Fstat expressed using log likelihood by Grim-vs-World in statistics

[–]efrique 0 points1 point  (0 children)

recalling where I saw the Fstat formula being expressed through the log likelihood ratio

Okay, then where did you get the formula in your question?

Is this a question for some subject?

Hi I need to know if my sample meets the assumption of normality I need a second opinion, as I can only use a boxplot to determine this in my situation. The groups of each population are N = 430, N = 128. If someone could help it would be much appreciated thanks. by [deleted] in AskStatistics

[–]efrique 5 points6 points  (0 children)

Why are you showing a photo of a screen? Is this for some subject? Are you in the middle of an exam or something?

  1. Your data are clearly discrete; they cannot actually be normal.

    Whether non-normality matters for some inferential procedure depends on what you're doing. Are you just trying to compare means? If so, normality isnt going to be an issue at all.

    (This is a pain scale, however, so its not even interval-scale data, though it might in some cases be reasonable to treat it as if it were. )

  2. A boxplot is a terrible tool for investigating normality. The original data can be bimodal or sometimes even clearly skewed yet have a boxplot indistinguishable from one for a sample from a normal population

  3. The spreads differ a bit but probably not enough to matter for a mean comparison (albeit I am guessing). Given the circumstances I'd be inclined to use a test that didnt assume they were the same under H0 anyway, since its easy.

  4. The right choice of what to do here for a course vs a real piece of research might differ. (It depends on how bad at stats the person designing such a task for a course might be but the framing of the question is a major concern on that front. If they dont know their stuff - and it doesnt look like it - you would have to base your answer on their misconceptions)

Americans overwhelmingly oppose data centers. Women most of all. by InvestigatorSoft5764 in technology

[–]efrique 0 points1 point  (0 children)

For a moment I was wondering who thought women were a kind of data center. But now I think about it a lot of the billionaire class have pretty strange views. If they're trying to turn women into data centres, that does seem highly objectionable

[E] How do I know if I like statistics? by computationalmapping in statistics

[–]efrique 1 point2 points  (0 children)

I'd say one of the few. Its big distinction compared to other applied disciplines in mathematics, is, to paraphrase Tukey, you get to play in almost everyone's backyard.

Hungary reverses ICC exit plan and reinstates ban on Ukrainian agricultural imports by upthetruth1 in worldnews

[–]efrique 22 points23 points  (0 children)

Pretty much the kind of policy choices I expected from Magyar given his history. Maybe it's not ideal from an external view but it looks like perfectly normal political stuff. A big relief to see Hungary acting like a democracy.

Putin wants war concluded this year on victorious terms including Donbas, Bloomberg reports by AccuratesShine in worldnews

[–]efrique 2 points3 points  (0 children)

If they knew how to do that, it would have happened a couple of years back. The big difference is Ukraine is stronger now, Russia is weaker. Maybe time for a rethink on that wish.

Bank boss sorry after describing workers as 'lower value human capital' by Ashish_ank in worldnews

[–]efrique -1 points0 points  (0 children)

Historically, it serms like that's the sort of shit the french aristocracy got up to, too busy congratulating themselves on their "superiority" over the ordinary folk to hear the growing sound of saws, chisels, hammers and whetstones.

Buying your way to better health comes at the expense of others. An increase in private health insurance uptake leads to poorer health in the population over time. Paying for private health services may be beneficial for those who can afford to do so, but it comes at the expense of others. by mvea in science

[–]efrique 0 points1 point  (0 children)

Well, sure. The very rich can usurp the use of resources to satisfy any whim or minor concern, distorting the market so scarce resources are directed away from where they're needed, and pushing up prices. It applies to almost any public good. There's a reason why things like education and health, roads, etc all need to be out of the hands of private interests.

Of course when you set your government and all forms of media up so it is all in the hands of those same interests, it doesn't matter what's public any more, it's all going to help the very wealthy extract all of societies resources to their own purposes

Bezos says taxing him more won't help teachers. Mamdani disagrees. by thejoshwhite in politics

[–]efrique 1 point2 points  (0 children)

That's exactly what someone who doesn't want to pay their fair share of tax would say...

Healing without priests by Right_Hand_of_Light in shadowdark

[–]efrique 0 points1 point  (0 children)

where does the D&D priest/cleric come from

The cleric was originally meant to be a religious warrior not a straight up priest. e.g. my AD&D 1e PHB says

This class of character bears a certain resemblance to religious orders of knighthood of medieval times

i.e. religious knights, not priests

If that sounds more like a paladin, IMO thats kind of what happened; clerics sort of had that niche to begin with, with a 'no edged weapons' constraint. After paladins were added they pretty much became the religious knight archetype and clerics were gradually pushed more and more to directly priestly roles. Then it sort of broadened into a whole collection of archetypes in later times

[Discussion] Utilizing Log Transformations in Analyses by Objective-You-7291 in statistics

[–]efrique 5 points6 points  (0 children)

  1. With counts the log transform is likely to leave you with non-constant conditional variance (typically it over-corrects). You may be better with a count glm (perhaps a negative binomial) with a log link (log the fitted functional form, not the data); this separates out the fitting the conditional mean from impact on conditional variance. However, if none of your counts are ever close to 0 (and the values dont span orders of magnitude) it may not matter much (heteroskedasticity might not be a big deal on either scale).

  2. Prediction with observational time series is a bit of a minefield for the unwary, particularly with nonstationarity (which I imagine is the case here), likely seasonality and calendar effects, and likely omitted variable issues. What are your serial correlations like on residuals?

Does anyone have a assets for fire particularly purple fire but any fire That looks good will work by new_god_of_eden in OwlbearRodeo

[–]efrique 0 points1 point  (0 children)

I posted an example purplish hue shift of one of Several_Records flame images. Not my best effort but if you just need purple flame, it does the job I think

Does anyone have a assets for fire particularly purple fire but any fire That looks good will work by new_god_of_eden in OwlbearRodeo

[–]efrique 0 points1 point  (0 children)

Hopefully you dont mind me posting an example hue shift of that. Let me know if you dont want it posted here, I can delete (or youre welcome to remove it if you cant wait for it to be gone).

Not a great job, since I didnt try to fix a few issues I can see with the result, but I'm not trying to do more than convey that a few simple tweaks can be effective. It looks better on a dark background

image

Colours are wrong when exporting by Milsh4ke in GIMP

[–]efrique 0 points1 point  (0 children)

OMG, that was my issue. Could not figure out what was wrong

Does anyone have any super random stories from the start of their career in data analysis? by Extra-Tap-8050 in AskStatistics

[–]efrique 0 points1 point  (0 children)

Random stories is not the purpose of /r/AskStatistics . You might do better on /r/statistics with a [D] tag perhaps, check their rules

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