Tutorial 18-Hypothesis Testing And Statistical Analysis Using T Test

A t test is a statistical test that is used to compare the means of two groups. It is often used in hypothesis testing to determine whether a process or treatment actually has an effect on the population of interest, or whether two groups are different from one another.
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[@sanketdeshmukh415]

Acceptance range will be - 1.311 to 1.311
T value will be same as 10.96.
So Reject the null hypothesis

[@mahalaxmiindapure8961]

for Confidence Interval = 80 , Answer ----decision boundary between -1.311 and + 1.311, t-score= 10.96 therefore we reject null hypothesis

[@rubayetalam8759]

another wonderful lecture, thank you very much.

[@44.sanyuktatarte46]

It helps alot.. especially for students who have medical background n they fear maths..it helped me alot.. thankyou so much.

[@vinaypritwani]

Sir please complete the stats series, its amazing!

[@sakshiojha1736]

Please complete the stats tutorial. Its wonderful.

[@Nandinisingh822]

You can watch 7 days stats live Playlist....available on krish naik channel

[@mujibai]

thanks dear@@Nandinisingh822

[@iqrajannat]

sir completed with the playlist, waiting for more videos, thanksyou for putting efforts for us

[@user-ec5ws1uf4h]

Sir, please 🙏 continue this stat series, it’s actually very interesting.. pls upload next topics

[@hardsoul00]

kiya khoob or asaaan samjhaya ap ne Thanks

[@rohitrohit6883]

wonderful class for t test

[@kaushalbachhav1996]

your video is most valuable . make more video on interview preparation
Thank so such valuable time and teching thank so much sir

[@rutvikprajapati8623]

Thank you Sir and Range for 2 tail is -1.699 to +1.699

[@hardsoul00]

Amazing sir g love u

[@sunnymalhotra203]

Thanks krish for such a valuable tutorial.
It's my humble Request to improve the hand writing and would be great if you share notes in pdf format as well.

[@UbaidAli-tz4wu]

sir complete the playlist ASAP

[@princephogat3527]

Sir, I recently purchased the Tech Neuron Subscription but now I'm confused between data science courses plz tell me which one is the latest one or do I've to study first bcos I'm a beginner and don't know about programming, plz sir help me out to choose the course by which I can learn from basic to advance.

[@prateekpal2249]

the standard deviation given was for the sample not for the population so we could have directly used it instead of dividing it by sqrt(n). Can anyone please explain??

[@hardsoul00]

LOVE U SIR G

[@durgasahoo5115]

Sir if population sd is not given but still sample size is greater than 30
What to do

[@rohitrohit6883]

sir please give further videos on stats.

[@prathambharti5177]

Sir how many video will there be in Playlist?

[@ashishvinod2193]

please continue the statistics playlist sir.because Placements are near.

[@Newtips-il7rf]

sir how to calculate Regression with standard deviation formula

[@Shashank_Masurkar]

when will be the next videos uploaded?

[@shashankbadoni6694]

range is from -1.311 to 1.311 , t = 10.96 hence we reject the null hypothesis and the result of medicine is +ve on the people.

[@Bharatverse308]

So Z test me degree of freedom use nhj hota?
Right

[@h_rahul09]

Sir please Continue Statistics series ❤

[@ajay2saroha]

Sir,
Is this is complete playlist of stats for data science

[@parulraj1941]

Please sir complete the playlist...

[@MovieOk-p8q]

Please complete playlist

[@h_rahul09]

Sir please complete statistics series

[@alphapoint389]

Sir how formulas are derived?

[@h_rahul09]

Sir please complete the Stats series

[@altmash7872]

sir mera CI 0.2 araha hyen
T table me kya ho ga

[@BCA_KA_BANDA2003]

Sir, please🙏🙏🙏 complete this statistics tutorial.

[@BhagwatGeeta_s]

sir please completed this tutorial i am waiting for your next videos

[@vaibhav1757]

sir please upload videos on further topics, i have exams in the end of this month plzz . ITS A REQUEST

[@anshukaurav2896]

if sample size =>30 then we used z-test , if

[@ashishvinod2193]

T table value = 1.311
and our T test calculated value remains as it is 10.96..
T test calculated value > t table value so reject the null hypothesis and this medicine increase the IQ people..

[@harshaddeshmukh2935]

sir next video plz: chi-square test & annova test

[@Newtips-il7rf]

sir how to calculate regression with pearson`s r

[@pr_ateek]

Sir please complete ANOVA test

[@sheikmuizzahmed2308]

can someone please tell me if this series is complete?
Can I rely on this playlist?

[@amitmishra1303]

Only 2test are pending which i hope @krish Sir will upload soon

[@aishwaryapapuli]

Sir can you please upload the nxt course

[@gautampandey2720]

add video of annova test quickly sir

[@rohitrohit6883]

according to me if C.I. = 80% then our conclusion Reject Null Hypothesis. (t value=10.96) which is greater than boundary value i.e , +1.311

[@kdasurrenderedsoul7613]

Hare Krishna 😊

[@user-vb5hh7rw3s]

decision boundary is coming 1.645 to right and -1.645 to left and t value is same as before so we should reject null hypothesis

[@sunilkushwaha5642]

Krish ji next tutorial kab tk aayegi . Kuch update ?

[@sumitkoshti1171]

Mue = 100
X = 140
n = 30
CI = 80%
Sample standard deviation s = 20
1. Hypothesis
H0 : Mue equal to 100,
H1 : Mue not equal to 100
2. Let's find significance value alfa,
alfa = 1-CI
alfa= 1-0.8
alfa = 0.2 or 20%
3. Let's find decision boundary, as it's two tailed test,
Alfa = 0.2
And degree of Freedom = n-1 = 30-1 = 29
So, For Alfa = 0.2 and Dof = 29 the Decision boundary from T able is +-1.311
Decision Rule : If T-test value is less than -1.311 or greater than +1.311 then we reject the null hypothesis.
4. Now calculate T test value
T = X-mue/s/under root n
T = 10.95
5. Conclusion : As t-test value 10.95 is greater than 1.311, We reject the null hypothesis which means that medication gives us positive impact and helps to gain intelligence.

[@sauravjha1714]

Try to make video without the two tail test case!!!
It will be helpful!

[@divyapandey7844]

we will reject the null hypothesis because acceptance area for CI=80% is 1.31

[@sagarkakade1993]

Sir next video please

[@Kiranputraakash138]

Sir please upload new lecture

[@raviprakashrai990]

Sir please video upload kariye

[@loveyourself1291]

Sir video upload kijiye sir plz

[@importantforlifeyasharora9042]

Jo tmne padha use yaad karke yaha padha rahe ho. Tumhe smjh amb ni ata.

[@fenisha-hb6yf]

well the simplicity of teaching method is commendable!!🤌🤌🤌

[@RamaKrishna-ll8iz]

Acceptance range will be - 1.311 to 1.311
T value will be same as 10.96.
So Reject the null hypothesis

[@samarthyadav4274]

Same

[@macn2922]

Same

[@hamzashakeel2845]

Please complete the stats tutorial. Its wonderful.

[@h_rahul09]

Sir please complete statistics series