Calculating z Scores Statistics

[youarestupidxxx]

What book do you refer to?

[statisticsfun]

@youarestupidxxx I use a lot of different books in my classes, but I recommend "Statistics for The Behavioral Sciences" by Gravetter and Wallnau. I would recommend you get an older edition because stats does not change that much.

[fhealer1]

This vidio is very helpfull and grea. thank you for taking your time to help confused student like me.

[statisticsfun]

@fhealer1 Thanks for your comments. Much appreciated.

[kotofu]

why only left channel?

[statisticsfun]

@kotofu good question... well this was during my experimentation phase and used a one channel microphone. The good news is all my recent videos are with a stereo microphone and are in HD too. I plan to redo all my older videos.

[iamGlitzyGrace]

Why there are some professors needs to teach complicated even how easy the subject is? :/ thanks to youtube, my tutor at home :)

[Gorrillaknuckles]

OMG this was so helpfull

[IceAges14Aces]

As a novice statistician, I notice that calulating z-scores is much more easier and less complex than calculating P-Values in my meta-studies..

It's simple really, you just subtract the actual score of the observation with the mean score and divide it by the standard deviation of the normal distribution......

[statisticsfun]

@IceAges14Aces very true!

[saijai587]

Good video thank you for explaining calculating z scoring.

[liang8231]

This video is very informative about statistics

[jamecolte]

Calculating z Scores Statistics is great.

[ongolos]

audio quality is ... its missing dual speakers :( hurts my ears cuz i use ear buds.

[robobrain10000]

my book says anything less than -1 Z is 0.1587 . Is my math book wrong or...? in your video is it just an estimation??

[statisticsfun]

@robobrain10000 good observation. I am rounding up to 16 percent from 15.87 percent (.1587) just to simplify the problem. btw, most of statistics is just estmating.

[statisticsfun]

@robobrain10000 good observation. I am rounding up to 16 percent from 15.87 percent (.1587) just to simplify the problem. btw, most of statistics is just estimating.

[MrNomany]

oh so easy ur explaintion ..............wobs haaaaaa

thx for u and this is really enjoying when to understand u haaaaa

thx again

[Gatorade237]

Had this lecture today but unfortunately the lecturer must be so used to giving this material he skips from A-C skipping over B.

And he's on TV as an economist.

Thanks

[A3berkke]

Nice, clear and effective.

[A3berkke]

Nice, clear and effective

[A3berkke]

Very nice, clear, simple and effective

[TAC5Patriot]

You're the man. I've been searching for videos that could help me figure out a particular problem and your video was a match. Thanks for taking the time to make it.

[cltc2006]

i <3 you! thank you so much for this tutorial, helped alot :)))

[goldheart72k]

I wish all STAT teachers explained like you! LOVE it

[Seanchai0]

Thanks! - John

[laosai428]

finally i got this! thank you!

[missbennet4ever]

Can anyone tell me where 3400ome from? pls

[statisticsfun]

The .3400 is the back of your book. There is a table of normalized z scores. It lists the z score and its value.

[missbennet4ever]

@statisticsfun Thanks:)

[TheWorldOfSammiches]

@missbennet4ever in one standard deviation there is 68% of thhe data, in 2 there is 95% and in 3 there is 97.7%

[statisticsfun]

@TheWorldOfSammiches Yes more or less you are correct. plus or minus 1 standard deviation contains about 68 percent of the data, plus or minus 2 standard deviations 95%.... remember z scores are the number of standard deviations away from the mean

[MesopotamiaGod]

Brilliant.

Hi, was wondering what software are you using to create the presentation? I'm assuming its an older version mac OS.

Great work,

MGod

[statisticsfun]

Created on a MacPro using the latest and greatest video editing software, a bit of flash and some stuff.

[brashboy0403]

This is so simple, but brilliant

It is brilliant because it is simple

Thanks so much for the video and good job

[ganeshshakthi]

Superb video

[lavedon]

what happened to the sound on your videos? All I hear is guitar strumming for a couple of seconds.  Bizzare!

[frandaz]

Really fantastic video there. Very clear and easy to understand.

[daddylench]

perfect!

[youchooyoung]

is z random variable?

[statisticsfun]

No! z is not a random variable.

[Ruks8]

Thank you for your simple clear to understand explanation...Can you make a clip on data correalation?

[freshkvt8]

farrout!! after 3 years of high school i never understood this until i watched this video tonight...made it soo simple to understand! Thanks alot!!! appreciate it :)

please make more videos on probability topics

[sdy05]

EXCELLENT!!! You are AWESOME!!

[trueshinobi01]

how did you get .3400? did you look at the z scores of -1 and 0? If so how?

[Talian1]

Watch his first video z scores explained. He does a great job of explaining where the .34 comes from.

[confused7982]

Excellent.

[Rainmakker84]

Thank you. I agree if all the teachers would take their time to explain where and how it is use full as well as how to do it carefully. There would be less students tortured by this subject. Thank you

[Sara90C]

VERY well explained! it helped me a lot. thanks

[delayedmuffin]

Why is it that the number 10 isn't placed on the right hand side of the 15 as opposed to the left. Is it just that the value of 10 is less than 15 which is why it is place there?

[LilaDeGr8]

yes, the value of 10 is less than 15, so it is placed to the left, as in a normal number line.

[pbhello]

thank you

[imstilly]

Thanks very much, i'm just gonna repeat what's been said above... if everyone taught stats like this students wouldn't be tortured by it!

[jCherrey13]

um...why does the z score matter? can it help me with something else?

[richi1173]

the z score is the measures of your particular number and rank in a particular data distribution. The z score is basically measuring how special you are. Its very important, and all colleges use it to rank you compared to others across high schools and states even.

[filipristic]

thank you so much for posting these!! If our professors were this clear no one would be tortured by stats!

[SweetMelody93]

well ne m8 u clarified the more than and less than stuff God bless u

[oatmealdog]

Thanks for posting this :-)

[nyldgreat]

How I wish I can tALk to you..Stats is torturing me...URGH!

[genericvideo1]

Great vid, wish my stats professor was this clear.

[mttellek]

Well done - but the video is cut off.

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