So you're telling me, im on top of the world? Thanks!
@tomp49254 жыл бұрын
Great explanation. Just what I had been looking for. It was hard to find. But, there must be an actual formula or an algorithm a calculator uses to find the p value in a chi square test. Been looking for that, too. Can only find how to find the p value after calculating the z value.
@cockerspaniel19734 жыл бұрын
This explained it better to me than my text or tutors. I still do not understand what the null hypothesis is and how you figure out whether to reject it or not. I understand how to calculate the chi-square and the degrees of freedom, I understand how to use the critical chart to find the right p value. I get lost at the greater than and less than signs and the null hypothesis part, somebody help please! I would send and email but I could not find it.
@aravindssingapore43274 жыл бұрын
Hi, wonderful explanation. The p-value explanation was p for priceless
@oybekeshbayev86273 жыл бұрын
great job!! you make me get the anova statistics and p- value
@marc30959 ай бұрын
“We need to find which, which, y’know, whichever number we gotta deal with” same
@tsakernguzan73383 жыл бұрын
Great explanation...... Thank I'm glad u did this....
@GayathreeN4 жыл бұрын
I don't get it. We can directly accept or reject null hypotheses based on chi-square value is less than or greater than 0.05, right?then why again P value what is it's use?
@sumayyakamal88573 жыл бұрын
One of the best videos ever! But I'm confused, how is t-test and one-way ANOVA related? Are these methods to find the p-value just like Chi-square?
@brodriguez10245 жыл бұрын
I think that's a Sigma, not Epsilon.
@ianapostal80442 жыл бұрын
Thanks for the refresher!
@amshumanshrestha66732 жыл бұрын
i got you . Thumbs up for you.
@fabianaltendorfer11 Жыл бұрын
Great video, thx!
@richashrivastava39813 жыл бұрын
I did not get why the null hypothesis is rejected or not rejected based on the table.
@jaimeguerra71384 жыл бұрын
How do you get the pooled data from the chi square values of multiple experiments
@aravindssingapore43274 жыл бұрын
Great question. I am trying to find an answer too. Will let you know if I do
@notvladamir40823 жыл бұрын
@@aravindssingapore4327 did you find an answer
@mponelamathei72452 жыл бұрын
Thanks, great explanation 👍
@Ilemaurice6872 жыл бұрын
I need help
@carlasouza53062 жыл бұрын
Thank you
@ogechiezeoru8367 Жыл бұрын
I have a question
@7justfun6 жыл бұрын
Shouldn't expected value = row total × col total / grand total?
@markthestudtvjuarez68265 жыл бұрын
7justfun yes I think his is wrong
@tomp49254 жыл бұрын
Good question, but I believe he is correct. His hypothesis is testing for goodness of fit. The formula you are using is testing to determine whether the variables are independent or dependent. They are similar but different. Same chapter in my textbook but two different sections.
@quotesking68124 жыл бұрын
Thanks
@guilysmag85673 жыл бұрын
Thanks 🙏🏽
@eishalarshad72164 жыл бұрын
how to calculate exact p-value, I have some values and my exam wants me to calculate exact p value. I am calculating fungus as a risk factor for revision surgery. 3/30 patients who had revision surgery had fungus, 27/30 didn't have fungus. 3/70 patients who had their first surgery also had fungus but 67/70 didn't have fungus. Total patients are 100. I have to calculate atleast 10 risk factors like these and they all ask for exact p values. Please please help me figure out p-value with this one so I can calculate for the rest of the risk factors myself.
@angelalebiu29732 жыл бұрын
Ehi guys so if the number that i ve to search in the tablet there isn’t in the df …i ve to suppose it’s 0.001< ?
@emmanuelmuthusivaati17843 жыл бұрын
Nice one
@sangulukanimbewe53316 жыл бұрын
How do you come up with Chi square table or cumulative table. I know how to find a critical value but I don't know how you come up with the table.
@EOCmodernRS5 жыл бұрын
You need to look it up online. It's not something you calculate, you simply use the sheet to find the P-value.
@Light-vu6ws5 жыл бұрын
What does 0.05 mean? or any of those p values mean?
@soniawalusimbi5 жыл бұрын
5% significance level
@shera76646 жыл бұрын
.01>p-vaule>.05, we reject the null hypothesis. I guess this is right
@rojhiwa40832 жыл бұрын
goo bju
@hihochung6 жыл бұрын
So, how can I know the p-value precisely?
@danielreneer78886 жыл бұрын
The p-value is a value that is not typically calculated, and so we use the p-table that gives us a range of where it is, as opposed to a precise numrer. This is because we will typically test to see only if our p-value falls below the line of the pre-determined p-value for significance, instead of figuring out exactly what the p-value is. Hopefully that makes sense!
@hihochung6 жыл бұрын
Daniel Reneer Ok thx
@danielreneer78886 жыл бұрын
You're welcome! Feel free to post any more questions.
@hannatshaikh33185 жыл бұрын
P value less than 0.05 i.e 3.841. the null hypothesis will be rejected is it correct???
@aravindssingapore43274 жыл бұрын
@@danielreneer7888 hi, mr reindeer. If i remember correctly, i saw someone utilise r commands to compute the exact value of p