ttest pvalue

[HazyHippie]

wow....my professor took 3 days to teach us this, and I swear that I just now understand it after watching this video. Thank you for the clear and step by step instructions. I would however, have liked to see the T-chart to be able to visualize finding the p-value better.

[020536]

If I dont have a calculator to find the P value then what do I do. I got confused there on step 4. I'm not sure where is the area part is and how to look for it. Thank you.

[juma22]

Thank you!

[ihatechannels1986]

lol I can't concentrate because she is so cute!

On the other hand, great teacher, really breaks it down.

..Now if she could just drop it likes it hot.. haha

[drbandar]

How did you calculate the P-value ? which is 0.0017

[cpowel2]

Let me apologize for all the idiots on here who make comments about things other than the video you do a good job of explaining things its greatly appreciated please don't be deterred by those who act like they are still in the 6th grade

[yardconnec1]

what's the real reasoning behind rejecting the null hypothesis if the p-value is lower than the alpha value.

[tcreelmuw]

@yardconnec1 Yes, if P is less than alpha, we reject. The reasoning behind it is because the alpha is our rejection amount. Anything within that rejection amount will be rejected. The P-value is our testing amount. So, if P is within (less than) alpha we will reject. If P is greater than alpha then part of the P is outside of the rejection amount and therefore in the non-rejection amount, so we fail to reject the null.

[yardconnec1]

awesome!!!

[sco40]

reject what , bitch!!! the null or the alternative??? jesus christ , state what u mean

[tcreelmuw]

@sco40 We are rejecting the null, because this is a test (as all hypothesis tests are) of the null hypothesis. When I state the interpretation, it says as much. Try paying closer attention. :)

Oh, by the way, u is a letter...you is a pronoun.

[cpowel2]

@sco40

Don't be an asshole if you don't like the video shut the fuck up and don't watch it

[TradingTutor]

So p-value belongs to the test statistic's distribution, right?

[BillyBey1]

this was very helpful..thank u

[woonawoona]

question: shouldn't your hypotheses include all real numbers?

[zackfluoric]

I love you, and I will watch your videos until this semester is over.

[puckvoodoo26]

i have a stats exam on monday and right now you are my savior!

[kirmizibaslikiz]

would somebody get this poor lady a eraser! thanks for the tips!

[sullivanseven]

This was amazing, you are awesome :) I hope your LDL level never raises over 130. Also take care of your clothes.

[reytristanjoshua]

nice eraser.

[danvedman]

Hi I just want to ask. What do I do if I have 3 samples and I want to compare to see if the means are the same or not? Say I have 3 drugs (one is a control placebo) and I want to see if the drugs have a significant effect or not.

[hoogiechugie]

i don't quite understand step 4, if 3.15 is greater than the value given in the chart shouldn't you just reject it instead of trying to find the rough p-value?

[tcreelmuw]

@hoogiechugie We could just reject, because we know that we have a large t-value. However, doing the p-value approach, gives us the probability of the test statistic. It gives us a specific amount of evidence against the null.

[Xpalman]

thank you, i passed my statistics exams thanks to youtube videos and yours was one of it :)

[apostledre]

Hot lady.

[law2255]

Shouldn't it be (n-1) not n?

[law2255]

This is for calculating the critical value.

[karmooooooosh]

Thank u, it is so helpful god bless u :)

[darrinpatterson]

You said the p-value is less than the smallest one we have, but one what? I don't get it? I don't understand how you assume its less than .01?

[MsChoEnglish]

@darrinpatterson she meant the smallest number on the t-distribution chart.

you can find it here by google imaging t distribution table

[shawnw585]

thank you so much! You saved my life!

[vinatox]

Thank you very much.

[nnndfg]

thank you so very much, very helpful

[cvwelk]

Thank You for taking the time to post the steps...Truly very Helpful :)

[sweetysanta]

thanx alot :-)

[Idealbastard]

Thanks for helping me out with this and btw you are very cute :)

[storyteller76]

thank you so much, that just helped me more than you'll ever know.

[chetdog]

you are much hotter than my stats lecturer. I always thought that statisticians and mathematicians had boring voices, but you have a sexy voice. keep up the good work

[Besamelento]

I'm in Statistical Methods 3 and I was couldn't figure out how to find the p-value. You saved my life!!! Thank you sooooo much :o)

[Ogaju07]

Your first video? can't take my visual of the teacher; a complement. Nice work, very good.