Hypothesis Testing Full concept in Hindi | statistics | Engineering Maths 4 Lectures

[@Lastmomenttuitions]

Join LMT Telegram Community : t.me/lastmomenttuitions Get All updates of Free courses , Engineering Problem Solved , Study Tips , Placement Preparation and Motivation

[@ratanprajapati93305]

Level of significance = 5% hai to dono taraf range 2.5% kar ke chorna hoga tab total LOS=5% hoga and Level of Confidence=95% hoga

[@ratanprajapati93305]

Par aapne yeha miss kiya hua hai ye

[@Siddharth_9official]

Z=1.96 tht part is not explained well

[@alfaandomega10]

You have made a couple of mistakes 1) In the question, variance is given as 10.24. To find the value, you use Standard Deviation, not the variance. So, you should have taken the square root of 10.24, which is 3.2 2) Since level of significance is 5%, it is 2.5% on each side as it is a two-tailed hypothesis Z value would be: (6.2 - 5.4)/(3.2/sqrt(50)). This is coming as 1.77. As per your method, it would have been only 0.55 Since this is 2 tailed hypothesis, we have to look up the Z value for the probability of 97.5% (not 95%) on the right hand side, which is 1.96. If we look up 5% on both sides, it would have been 95% i.e. 1.645, not 1.96 Your answer is correct as you are getting correct pre-calculated values in the background but the methodology is wrong and using your calculations would give different numbers.

[@vaibhavdatta777]

thank you sir

[@BlackSpadeZ]

Thank you much I was confused as to how 1.96 is coming and you cleared my doubt

[@Youcan.-.]

thank u sir

[@ankitayadav2690]

Yes you are right

[@manish.2714]

Thanku sir

[@prajeshparekh9760]

Bhaiiiii aap ne variance ko SD me convert kiye Bina hi formula me put kiya he n direct book me se jawab laya hei .....samaj ne wale samaj jayenge bt ye comment beginners ke liye tha Mera 🙏🏻

[@SureshChouksey]

Bhai woh bhi "last moment" par hi padh ke aye the

[@SohamMandaliya]

@@SureshChouksey Right😂

[@indoorstrikes6265]

Thank you bro

[@indoorstrikes6265]

U saved my life

[@tejalpatil1507]

Yes Right.

[@pallaviagrawal1459]

Bro i was having zero knowledge about this topic but i serach for this topic they have more confused me. But you have explained it nicely

[@ankitabehera5754]

Same to you sis☺️

[@meerakawade3646]

Same

[@jayantaacharjee1238]

Level of significance 5 % distributed to the both side i.e. 2.5% on left and 2.5% on right.

[@rishabhsolanki4512]

If it's a two tailed distribution

[@jayantaacharjee1238]

@@rishabhsolanki4512 and yes, this problem is two tailed distribution

[@aftabjaved4784]

No problem it is human to err, you are doing good but only thing i recommend is do your pre video homework diligently, normally little mistakes happen but that must not discourage you. I m statistics teacher myself from Pakistan. Bravo keep it up

[@Lastmomenttuitions]

thank u so much for ur advice

[@irnaejaz3738]

Mjhe zra smjh ni ai k 1.96 kesy aya plz ap smjha dein

[@niranjankhandelwal2379]

Level of Significance : 5% is distributed as 2.5 on each side & level of confidence :95% in graph its not 5% on each side. Please correct it

[@Radharani-1999]

Right

[@mrinalchandra]

Exactly. Galat padha dia yaha pr. Channel is good. Needs more content verification.

[@CAStudent.Official]

Bilkul sahi kaha

[@karantandel4196]

I will be 1 ka 5%, so it is 0.05, both parts divided 0.5 left side and 0.5 right side.

[@vivekmodi2913]

Bro, this is correct z value at 5% distribution is 1.96

[@RameshSharma-kb7qc]

Your example is two tailed test. As your alpha is 0.05 then both side rejection area will be alpha/2 which is 0.025

[@bhavanasharma629]

Yes

[@pragneshdarji6139]

​@@bhavanasharma629😊l0😊llpl

[@cyrilsouza6443]

great explanation 👍 Just the z- score of 0.05 confidence is 1.64 So 177> 164 Therefore, Null Hypothesis is not accepted. (I am not that sure just confirming)

[@ayushdewangan7782]

Z-score of 0.01 confidence is 1.645...... Video is correct here...

[@veditmalhotra3614]

@9:55 he says null hypothesis will be accepted. You never accept, it is 'Do not reject'. Good video overall!

[@GeetaNakar]

Variance = 10.24 given means sigma( standard deviation) is square root of variance = 3.2 and this is sample standard deviation, not a population standard deviation, so ee have to find out t- test statistics.

[@hamzahafeez2909]

Agreed on 1st point.... but when sample variance is given then z test is supposed to be used....

[@CyberSecbyAnshika]

Earlier I found the topic difficult.. now it's both confusing and difficult.. Sign of standard derivation is sigma.. variance is represented as sigma^2. Also, when you said that null hypothesis is when H• = 0.05.. then why was it accepted??

[@8-bitgames55]

He said that we assume it is true that's why he wrote H.=0.05% . So In order to test whether this is true he put the values in the formula and got 1.77 then as he said earlier that the level of significance is 0.05 so he marked it on the graph and found its value from the table which is 1.96 and since 1.77 is not greater than 1.96 and is less than it(can even be equal to it) he accepted the null hypothesis. So this shows that H.=0.05 is true.

[@vedprakashsharma1150]

Please upload a viedeo on f-test, z-test and student t-test so that we can fully understand this topic.

[@saxenaiway]

Presentation was very nice But Please correct Point 1. Variance is square of std deviation (std written as variance in demo) . Point 2. 1.96 of bell curve represent 0.95 on either side. Also 5 % is for two tail is equally devided on both side hence should be 2.5 % (except if it is a one tail method is used).

[@sreejithsmon]

Way of teaching is good.Tell ur camera guy DNT change the focus randomly.

[@mahendravasava5285]

સંશોધન Hypothesis testing વીશે ખુબ ઉડાણપુવૅક માગૅદશૅન પૂરૂં પાડવા બદલ આપનો ખુબ ખુબ આભાર સર

[@jagadeeshalubilli5218]

In that question variance is given,we need standard deviation ,but u took variance directly.

[@amitava1973]

Jagadeesh. He should have mentioned that he is using the standard error of the sample mean while calculating the Z value of the sample.

[@nagendraprashadsingh967]

Root kar k kigiye, ans same hi aayega .

[@abhinavsharma9178]

02:29 Hypothesis testing is used in statistical analysis to find out facts or conduct surveys. 04:58 Hypothesis testing involves comparing a null hypothesis with an alternative hypothesis. 07:27 Null hypothesis and alternative hypothesis are mathematical opposites. 09:56 The level of significance determines whether the null hypothesis is accepted or rejected. 12:25 Performing hypothesis testing to determine if a sample is drawn from a normal population 14:54 Understanding hypothesis testing in statistics 17:23 The critical value in hypothesis testing is determined based on the level of significance, such as 5%. 19:52 Hypothesis testing involves 5 steps

[@knowledgeispower7321]

Finally found is topic ka solution !! Thanks alot!!! For providing practical analysis on such terrible terms! ❤️

[@ayushigupta0110]

z= 0.55

[@entertainmentforall2409]

your method of teaching is very good am appricade you

[@rohitdas490]

Your voice is so loud and clear, it made the video really awesome

[@mansukhbhaimaru2758]

ખૂબ સારી ને સરળતાથી સમજાવ્યું . નલ અને અલ્ટ્રેટેટીવ બંને વિશે સહજ રીતે સમજ પાડી છે,thanks

[@soumentalukder5892]

11:37 please be a bit concerned about auto-focusing problem. Setup your camera manually from the next video onwards please

[@YashYadav-lg5fv]

Camera auto focusing

[@mayurjani7898]

विषय को बहुत अच्छी तरह से समजाया अलग अलग उदाहरन के साथ मार्गदर्शन दिया। धन्यवाद

[@Lastmomenttuitions]

Your welcome

[@rachitgupta8794]

13:45: S.D of the population = UnderRoot(Variance). Since the value 10.24 is the variance, it's underRoot has to be taken and that would be 3.2. Only then the final Z value will be 1.77. Please Take Note!

[@tactics_fc8937]

🤘👍

[@Sonia-gw9hg]

Is there anyone who can make assignments on these tests?

[@ericmacwan592]

Yup bro thanks for advice

[@jjjjkk9700]

I want help

[@TechnologyViralNews]

Yes correct, I was also thinking the same

[@shavetakoundal2426]

I literally watched several videos but this concept is clear to me from your video

[@shrikantkulkarni5550]

No words to say about the way you explained the things, used simple and made it easy to understand. Thank you so much.

[@shrikantkulkarni5550]

Could you please make video on p value?

[@reddys9205]

How to get z value 1.96

[@youthclub3899]

Bhai ya ap ko table ma given hota h

[@vanshthakur102]

In the question you were given variance which is sigma square and you used it as Standard Deviation(sigma). The value of Z you calculated was 1.77 then you changed it to 1.96

[@therahii.3one]

Variance ( Sigma ²) = 10.24 Standard deviation ( Sigma) =√10.24 =3.2

[@ibrahimnadir009]

5% level of significance that is half in two-tail, .05/2= .025

[@owais5337]

If level of significance is 5% then u should have to take 95% of level of confidence in one tail test And if u r doing two tail test then u should take alpha take 2.5 % i.e. 0.025 at both end

[@Poojachoudhary-jv6iy]

Yrrr ye meko smj hi nhi aati. Or bio me bhi statistics pta nhi kha se aa jati h

[@raj9101990]

Starboy world Thank you bro for mentioning it.

[@owais5337]

@@Poojachoudhary-jv6iy heheh😅 Stats is every where

[@owais5337]

@@raj9101990 ur welcm bro 😊

[@Toxicboi-nr1ty]

Z=1.96 kaise aya

[@MONOJIT001]

Advanced congratulations for 1 million 🎉❤

[@GeekyMan]

Bro, if the p-value is less than the significance level, then the null hypothesis is rejected, not accepted...if it is above the significance level, then the null hypothesis is not rejected. Don't provide misleading information!!!

[@sumitsingrajput2895]

Correct! Please make one another video and correct it

[@diyaroy9068]

Hi my name is Diya.Can u plz contact me.muja ekta teacher chaiya statistics ke liye please contact me.My number is 6294865773. Abhi corona k liya koi bhi teacher nahi mil rahi hai.

[@tarunupreti6387]

is it they should only make video if the concepts are cleared they can damage someone's concepts totaly

[@GeekyMan]

@@diyaroy9068 You can refer to the channel Statquest. It is really awesome!!

[@meenalverma5379]

What p value are u talking about bro

[@drchandpasha]

In two tail curve distribution I think each side critical value should be half of the significance each side. Exallent presented

[@abhi13091985]

I guess you have done mistake with regards to variance and S.D. Variance = square of (SD). You have used variance directly instead of SD.

[@rohitsinghal6389]

absolutely

[@daniyal.zahid23]

Bro u have got full grip of it Hats Off For Ur. .Effort

[@Lastmomenttuitions]

Thanks

[@maheshjodhani2660]

Thank's for give Haypothesis testing relatel information sir

[@Lastmomenttuitions]

Your welcome

[@bharatwaghmare4561]

Hi sir, in above example, While taking z score value with two tailed test, with 0.05, don't we need to consider the DF also which is n-1=49. I we consider degree of freedom, the z score value of 0.05 will be 2.010. which is greater than 1.77. Pls correct me if I am wrong.

[@subratkumarnaik6428]

Your way of understanding to people is very excellent

[@sejalmakadiya1264]

ખુબ સરસ માહિતી આપી ધન્યવાદ 😊

[@AryanKohli-hkscx]

The channel name is so accurate XD

[@NoobMaster-ub5ls]

Lol, he didn't get it, and gave you heart.

[@priyatrikoti12345]

1 saal se mujhe ye kabhi samaj nh aaya but aaj sb ckear ho gya ek hi baar mai thanks a lot for making this video❤🎉

[@akashankolekar2231]

How to identify that 1.96 with help of table

[@Prasoonshrivastava]

Level of significance will be 2.5% on both side in two tailed test instead of 5% each side and level of confidence will be 95% instead of 90%

[@myansis4047]

Very splendid explanation..... You cleared basic terms regarding this topic.... Keep it up.....,,👍

[@mandakineeeducationtutoria1515]

Important video about Hypothesis Testing.

[@alapatisoumith5161]

in the question solved in the video, variance was given but we need to consider standard deviation in the formula so what is shown was wrong still the answer is correct because he directly wrote the answer without calculating . But the explanation helped me Thank you for that .

[@DrWD-hr6ez]

Jazak allah khaira , allah aapko kamyabi dey aur salamat rakhey

[@shaukatahmad6243]

From where you get Z value 1.96, while you calculate Z value 1.77 can you explain please. Thank you

[@sachialol9278]

1.96 is Table Z value which is provided in the question itself. You will calculate the 'Calculated Z value' which is 1.77 here. Now if Calculated Z value is less than Table Z Value, then Null Hypothesis is accepted.

[@ironF5]

@@sachialol9278 z=(6.2-5.4)/(underroot(10.24)/underroot(50)) = 1.76

[@vaishalibansal1633]

@@ironF5 why underroot10.24, in video he mentioned 10.24/√50 only

[@alfaandomega10]

@@vaishalibansal1633 Standard Deviation is used to calculate the Z-value, which is square root of the variance. 10.24 is the variance, not SD. What he has explained in the video is not correct.

[@Commercelife15]

Am so Confused about this topic but when am see your video truly am understand hypothesis thnku so much for this osm video your way of teaching perfact. 😊😊

[@abhishekrana5636]

Hello Sir, Could you please give an example of Hypothesis testing using t-distribution ?

[@amitkushwaha4139]

Start at 0:38

[@ChandrapalSd]

Yes there are some mistakes in this video, but the explanation is awesome. And surely it helps in the last moments ;)

[@rajuamar8939]

Thanks sir...very well explaine for null hypothesis and alternate hypothesis test....again thanks...

[@Lastmomenttuitions]

Your welcome

[@shambhaviaggarwal9977]

Awesome video! Ps. at 10:57, Variance is represented as Sigma square.

[@HimanshuSharma-jj7ml]

but in this care variance is just sigma

[@SureshChouksey]

Woh bhii last minute hi padhke aye the bro

[@suryanshvsingh5496]

Sahi bol rahi ho meri jaan

[@aakankshagosain4749]

@@suryanshvsingh5496 ooo nalle

[@dipanshusinghrawat7128]

@@aakankshagosain4749😆

[@sahilgulati5440]

GOOD GOING BROTHER..I LOVE U.. U OPENED MY EYES...i was confused but not now..

[@saisharannune]

I have a doubt regarding critical value? How can we give value to it as 1.96 ? I didn't got this point....

[@prasannathapa1024]

usne integration nhi kiya bas value de diya

[@harshitsundriyal]

It's a Z-score.. we have table for it.. you can also calculate it using the formula for Z-score .

[@sheetalkalhapure4247]

Excellent explanation regarding null hypothesis....thanks

[@Lastmomenttuitions]

Your welcome

[@BrokenRecord-i7q]

Thanks, great explanation using real life questions!

[@brijeshchaudhari8294]

Good explanation about hypothesis testing and how to calculate and conclude level of significance .... thank you

[@meenazshaikh7450]

Really a last moment tuition 🤣🤣

[@vjukulkarni6057]

Hi Sir, i have applied hypothesis and i got there is an significant change in two groups,so now How to check the total percentage of change in Control group and Experimental group.i want to know exact value of that change ,

[@viralvideos030]

good explanation if possible can you put the link of playlist into the description, so that it will be easy to find all videos easily

[@saranshgoyal92]

Just because the value proposition of your channel is last minute tutorials, doesnt mean you teach like you yourself teach like last minute - in a haphazard way, and wrong. Firstly, variance is given in question. So sigma will be square root of variance. Secondly, it will be 2.5% on each side and 95% will be middle region. Please try and appreciate that people who come here to study for first time, place their faith in you and rely on what you say. You are their teacher. Try and remain calm, have some patience, and teach right. Having said that, salute to your efforts and the service you’re doing. Dont take my criticism negatively. Its just for your and the channel’s betterment

[@GeetaNakar]

Critical value of 0.05 is NOT 1.96 1.96 is the critical value of 0.025

[@vijayalaxminyamagouda9505]

Yaa even i too didnt get that

[@tusharsehgal4977]

sir i am from canada and these videos are helping me to ace my exams

[@anjanathakur5993]

Nice video

[@AbhishekPandey-fs3ry]

Thanks bro but plzz upload videos on remaining topics too asap !!

[@sk_gamer9867]

Before watching this vedio, I think this topic is really difficult and ununderstandable but sir I was wrong it's also simple. Thanks to you to make this difficult topic easy. I understand every sentence n sentence. I'm happy.

[@Lastmomenttuitions]

Welcome

[@khanjan7016]

Best lecture sir 👌👍...loved it 😍😍

[@rajkumarbiradar3587]

Applied Mamathematics... Beautiful simple meaning of hyphothesis

[@sourav_kr_dubey]

Bhai. Sigma = population std. Deviation hota hai na . Sample Variance = S^2 hota hai na????? 🙄🙄

[@jawadsaleemvlogs7916]

Han jiii

[@revolutioniseducation77]

Thank you so much sir first time I understood something in statistics

[@umaaggarwal3047]

Kindly let me know z value is 1.7 or .57 as i feel 1.7 is incorrect

[@ironF5]

z = (6.2-5.4)/(underroot(10.24)/underroot(50)) = 1.77

[@samruddhikoli1116]

@@ironF5 Why underroot of variance?

[@invincible6230]

so after accepting null hypothesis, which will be the new mean of sample, calculated one or the given one, i.e. 6.2 or 5.4

[@drashyakushwah5452]

Thank you soo much.. it cleared my hypothesis concepts 😊 Explained very well👍

[@AbdulJabar-hy5tu]

Mujay samjadengy ?

[@ayushigupta0110]

in this question variance is given, so you have to take out standard deviation from the same, instead of 10.24, 3.2 will be came, then the answer is 1.77. please mention this too, otherwise its confusing

[@hamzanazeer2512]

U did it wrong man it is two tail so divide 0.05 by 2=0.025

[@HassanShams01]

Yes exactly

[@pritamhait15]

Yes, he was wrong. It will be 0.025 in both side.

[@arfabadar3840]

Yes it's two tail

[@amitabhshekhar2558]

Yes

[@shubhamjain2835]

Harsh, your work is great

[@MrAbdullah_Ch]

Thank You for this great video ☺️ But I've to ask something that how do you put 1.96 from the curve?

[@miss_Hima_]

at 5% level of significance 1.96 is the value of two tailed test

[@MrAbdullah_Ch]

@@miss_Hima_ OK Thank You ☺️

[@anubhavkumar9189]

@@MrAbdullah_Ch bhai mujhe hypothesis testing nhi aati aur ab econometrics bhi nhi aa rhi bhai bata deh hypothesis testing kaise samaj ayega

[@MrAbdullah_Ch]

@@anubhavkumar9189 I've placed a video about hypothesis testing. Check that

[@MrAbdullah_Ch]

@@anubhavkumar9189 kzbin.info/www/bejne/f3WXp5aOi7J7bqs

[@chetalidesai1091]

Thankk u all information

[@Lastmomenttuitions]

Your welcome

[@efliy-tud8567]

You have explained well❤️ but my teacher did not use this why she has explained us with the help of SST, or with mean square of regression or something like that so can you guide me on the base of these above terms

[@jignishajigs2305]

Sir apne jo video banya woh useful for my studies but beech bas camera light thoda hil raha tha and dark and light mode ho raha tha otherwise is video is most useful in my study so thank YOU

[@preetimashi5069]

Z=1.77 ye value kese nikli sir plese help me

[@nikhilmahera8473]

Yes sir , mera bhi ans nhi aa rha

[@MohammedMohammed-id6ij]

Bro my sir ask one question Like find a any research problem And show ther level of significant and What statistical tool will be used in that Which hypothesis method is used And there scope So what is tha answer for that And how we present him

[@vikramverma17jan]

bilkul bekar video logic smjhao bhai beginner ko kya khichdi pka rhe ho aise bta rhe ho jaise 90% to hamen aata hi h

[@usamamuhammad1087]

Bilkul sahi kaha

[@BrokenRecord-i7q]

bro I liked it usne question ke saath explain bhi kiya, maybe its not for absolute beginners!

[@vinayakshirke1619]

​@@BrokenRecord-i7q I feel variance is wrong calculated is as sigma. it should be sigma square. what do u think.

[@sejalparmar9409]

Very god information about hypotheses testing

[@utpalendughosh934]

Good explanatory video...Thank you HRDC-GU...

[@zalaindravati3705]

Thank you so much sir Haypothisis testing વિશે સમજાવવા બદલ....

[@ganeshr3297]

Thank you Sir ..but It is very difficult to search all the statistics videos ..Please make one playlist individually.

[@jadavlalit7387]

Hypothesis best information Thank you RESEARCH SCHOLAR GUJARAT UNIVERSITY

[@mentalhealthandphysicalhea9576]

Psychology may statistic parh rahi hon ,,ap ny bhot acha samjhya

[@yagneshpadvi3224]

Very informative session on hypothesis testing.

[@shashwatchaurasia8780]

nice explanation really helpful

[@deepkumbhare3938]

Sigma mean standard deviation bro and (sigma)2 mean variance you should correct it

[@goldentime4910]

Creativity level bro salute LMT

[@ashishtandon9649]

How u have calculated Z value as 1.77 ?????.....Please recheck your calculations....

[@poojatopiya9695]

Good information of hypothesis ...Thank you

[@Lastmomenttuitions]

Your welcome

[@duadua1218]

superbbbbbbb .............. after a long time ....mujy smj a hi gya . am frm pakistan .....thnku

[@dakshbatra199]

Hello Team , your content quality is amazing. However, few videos are showing as private. Can you help me jow can i watvh those ?

[@yutisharma3673]

if the standard deviation of output per acre from a sample of 34 representatives firms producing wheat 83 kg is the hypothesis that standard deviation of output per acre of all firms producing wheat 107 kg rejected at 5% level of significance.. Please solve this

[@yogitagoyal4165]

Sanchit sir video on this topic are also very nice...can refer that one also...